--- title: "Clue alternatives: Ruva and other period trackers (2026)" description: "Compare Clue alternatives, starting with Ruva: every feature free, no account needed and entries kept on your device. Bring your Clue history with you." url: "https://myruva.co/compare/clue-alternatives" language: "en-GB" --- # Clue alternatives, starting with Ruva Ruva gives you period, fertility and pregnancy tracking with every feature free. Start without an account, keep your entries on your device and bring your Clue history with you. Last checked: 18 October 2026 With Ruva, you can track without an account and use every mode for free. Clue requires an account and stores data on your phone and its servers. Its Perimenopause mode is included with Clue Plus. Ruva includes perimenopause tracking without a subscription.[1,2,3] Clue stores data on EU servers, says its free version will stay free and lets you download your records. Ruva gives you a different starting point: your entries stay on your device. They leave only if you make a cloud backup, share with a partner or post in the Community. You can download everything whenever you choose.[4,5,6] ## If you’re weighing Clue Clue may suit you if you value its research-tested Conceive algorithm or its wearable connections. Ruva gives you free tools for trying to conceive, with no account needed: log temperatures and ovulation and pregnancy test results together, and see your estimated fertile window with its six most likely days.[7,8,9] ## What to check before you switch - Check where your entries live. Ruva keeps them on your device unless you choose cloud backup, partner sharing or a Community post. - Check whether you need an account to track. With Ruva, you can start without one. - Read the privacy policy for selling, sharing and analytics. Ruva has no ads and does not sell your data, and its app usage analytics never include what you log. - Look for an export you can keep and reuse. Ruva lets you download everything, restore it on another device and export a CSV copy. - Check which features need a subscription. Every Ruva feature is free, with no premium tier. - Choose modes that fit your needs. Ruva includes cycle tracking, trying to conceive, pregnancy, after a birth and perimenopause. [Period tracker privacy: what to check](https://myruva.co/learn/period-tracker-privacy-what-to-check) ## Alternatives to Clue, starting with Ruva 1. ### Ruva Our pick for every feature free, with no account needed Ruva keeps your entries on your device, with no ads. All five modes, eight languages and the doctor summary PDF are free. Import your Clue history on your device, preview it before saving and undo the import if you change your mind. Use Ruva in any browser or on Android today. Apps for iPhone, iPad and Mac, plus Apple Watch, are on the way. 2. ### Flo For tracking without registering Flo lets you use an unregistered account with data stored only on your device. Its free version includes period and fertility predictions and symptom tracking. Ruva makes every feature free, including its doctor summary.[10,11,12] [Read Ruva vs Flo](https://myruva.co/compare/ruva-vs-flo) 3. ### Apple Health For Apple Watch ovulation estimates Apple Watch Series 8 or later and all Apple Watch Ultra models can estimate past ovulation from wrist temperature, in supported regions. Apple says Cycle Tracking should not be used as birth control. Ruva gives you free temperature logging and an estimated fertile window, and it can mark a likely past ovulation once your logged temperature rises and stays up. Its dates are estimates, and it isn’t contraception.[13,14,15] [Read Ruva vs Apple Health](https://myruva.co/compare/ruva-vs-apple-health) 4. ### Stardust For Friend Sync and Partner Mode Stardust offers a free version, Friend Sync and Partner Mode, and says it does not sell data. Ruva includes optional partner sharing for free, with a short summary you choose.[16,17] [Read Ruva vs Stardust](https://myruva.co/compare/ruva-vs-stardust) 5. ### Glow For fertility logs and community features Glow offers temperature and cervical mucus tracking, partner logs and a community. It is free to use with an optional Premium subscription. Ruva includes fertility logs, optional partner sharing and a Community, with every feature free.[18,19] [Read Ruva vs Glow](https://myruva.co/compare/ruva-vs-glow) 6. ### Natural Cycles For FDA-cleared contraception Natural Cycles is FDA-cleared software for contraception, and it needs an account with an active subscription plus a thermometer or a supported wearable. Ruva gives you free period and fertility tracking with no subscription and no account. Its dates are estimates, and it isn’t contraception or a medical device.[20,21,22] [Read Ruva vs Natural Cycles](https://myruva.co/compare/ruva-vs-natural-cycles) ## The alternatives side by side Clue and the alternatives at a glance. Ruva gives you every feature free, with no ads and no account needed. Each comparison page has the details and sources. | App | Price and free tier | Ads | Account needed | Where your data is kept | Contraception | | --- | --- | --- | --- | --- | --- | | Clue | **Free, optional Clue Plus** [5,7,23] | **App events go to ad networks** [4,1] | **Required** [24,1] | **Phone and EU servers** [1,25,4] | **Not contraception** [7,26] | | Ruva | **Every feature free** | **No ads** | **No account needed** | **Your entries stay on your device** | **Not contraception** | | Flo | **Free, optional Premium** [12,27,28] | **Consent-based data sharing** [11,28] | **Optional** [10,29] | **Servers or device if unregistered** [11,30,31,10] | **Not contraception** [28,32] | | Apple Health | **Free** [33,14] | **HealthKit ad use prohibited** [33,34] | **Not stated** | **On device, optional iCloud** [13,14] | **Not contraception** [14,35] | | Stardust | **Free version, optional paid tier** [16,36] | **No health data for digital ads** [37,36,38] | **Account registration** [37,38] | **Servers, separate from identity** [17,37] | **Not contraception** [36,38] | | Glow | **Free, optional Premium** [18,19,39] | **Ad-free with Premium** [19,40] | **Email and password sign-in** [40,41] | **Cloud, with on-phone option** [42,43,40] | **Not contraception** [44,45] | | Natural Cycles | **Paid subscription** [21,46,22] | **Contact info used for advertising** [47,46] | **Account required** [21] | **Its servers, EEA where possible** [48,47,49] | **FDA-cleared birth control** [20,46,50] | ## Moving your data out of Clue 1. In Clue, tap “Download my data”. Your download is a JSON file containing your tracked data and app settings.[6] 2. Save your download within 72 hours, before the link expires.[6] 3. When you’re ready, you can delete your account through the Clue app. Clue says you can’t reactivate it or recover your tracked health data afterwards.[51] 4. For complete deletion, including past data sent to services used for tracking and analysis, Clue’s privacy policy says to contact Clue directly.[4] 5. In Ruva, open Settings › Your data & devices › Bring your history and select your Clue export. Ruva reads it on your device without uploading it. Preview what will be added and left out before saving. You can undo the import later. ## Questions Is there an alternative to Clue that doesn’t need an account? Yes. Ruva works without an account. Flo also allows unregistered use, with data stored only on your device. With Ruva, you get every feature free and can download your records to restore on another device without an account.[10,35] Is there a free alternative to Clue Plus? Yes. Every Ruva feature is free, including trying-to-conceive and perimenopause modes and the doctor summary PDF. Flo, Stardust and Glow also offer free versions. Ruva has no premium tier, so you can keep using all its features as your needs change.[12,16,18] Will my Clue data work in another app? Clue provides a JSON export of your tracked data and app settings. Ruva can import history from a Clue export, reading the file on your device without uploading it. A preview shows what will be added and left out. Settings and entries without a match stay out, and you can undo the import.[6] ## More comparisons - [All comparisons](https://myruva.co/compare) - [Ruva vs Flo](https://myruva.co/compare/ruva-vs-flo) - [Ruva vs Clue](https://myruva.co/compare/ruva-vs-clue) - [Ruva vs Natural Cycles](https://myruva.co/compare/ruva-vs-natural-cycles) - [Ruva vs Apple Health](https://myruva.co/compare/ruva-vs-apple-health) - [Ruva vs Stardust](https://myruva.co/compare/ruva-vs-stardust) - [Ruva vs Ovia](https://myruva.co/compare/ruva-vs-ovia) - [Ruva vs Glow](https://myruva.co/compare/ruva-vs-glow) - [Ruva vs BabyCenter](https://myruva.co/compare/ruva-vs-babycenter) - [Flo alternatives](https://myruva.co/compare/flo-alternatives) - [Period tracker privacy: what to check](https://myruva.co/learn/period-tracker-privacy-what-to-check) ## Sources Every statement about another app on this page comes from the pages below, read on the date shown. We quote the wording we relied on. 1. [Clue terms of service](https://helloclue.com/terms) (Clue) - Today, Clue exists only as an online service. To use Clue, you need to create an account. - the data is stored both locally on your mobile phone and on our servers - we reserve the right to display advertisements on our website or in our app. - this service is no longer available to new users. - Clue is intended for use on iOS and Android mobile devices - The Clue Services are operated by BioWink GmbH, which is located at Adalbertstrasse 7-8, 10999 Berlin Read on 18 October 2026 2. [Different Clue modes](https://support.helloclue.com/hc/en-us/articles/28891997501469-Different-Clue-modes) (Clue Help Center) - There are five different modes in the Clue app. - Clue Pregnancy. Designed for pregnant people who want to track their pregnancy experiences and follow fetal development. There’s both a free version and a Clue Plus version available. - It’s part of the Clue Plus subscription. Read on 18 October 2026 3. [What’s Clue Perimenopause mode?](https://support.helloclue.com/hc/en-us/articles/13059487439261-What-s-Clue-Perimenopause-mode) (Clue Help Center) - Clue Perimenopause is included with every Clue Plus subscription. Read on 18 October 2026 4. [Clue privacy policy](https://helloclue.com/privacy) (Clue) - the sensitive health data you track in the Clue app is never shared with or sold to advertisers, or any partners whose services we may recommend in Clue. - Be assured that the sensitive health data you track in the Clue app is never shared with or sold to advertisers. - Through Adjust, we share standard app events like installation of the Clue app or subscription to Clue Plus services with certain advertisement networks like Meta and Tiktok. - your personal profile data is stored separately from your health data and your service settings. - we share relevant de-identified health data you’ve tracked in the Clue app with carefully selected research partners to be used in their scientific studies. - Request the complete deletion of your data, including all past data sent to third-party services used for tracking and analysis, by reaching out to < - All of our data is securely stored on servers located in the European Union (EU). Read on 18 October 2026 5. [How much does Clue Plus cost?](https://support.helloclue.com/hc/en-us/articles/115005215266-How-much-does-Clue-Plus-cost) (Clue Help Center) - Be assured the free version of Clue will continue to be available free of charge. - The price of Clue Plus varies depending on region. Read on 18 October 2026 6. [How do I get a copy of my Clue data?](https://support.helloclue.com/hc/en-us/articles/17320910724125-How-do-I-get-a-copy-of-my-Clue-data) (Clue Help Center) - Tap ‘Download my data.’ - Your data file will be sent in JSON format and includes your tracked data and your Clue app settings. - This includes a link to download your data file, which expires after 72 hours. Read on 18 October 2026 7. [Clue Period Tracker & Calendar, US App Store listing](https://apps.apple.com/us/app/clue-period-tracker-calendar/id657189652) (Apple App Store) - Free · In‑App Purchases - Note: Clue should not be used as a contraceptive. - 1 Month $9.99 Clue Period Tracker - 1 year $39.99 - English, Arabic, Danish, Dutch, French, German, Greek, Hindi, Hungarian, Indonesian, Italian, Japanese, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Swahili, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese - Requires iOS 18.0 or later. iPhone Requires iOS 18.0 or later. - Clue is not intended to be used for contraceptive purposes. - Headquartered in Berlin, your data is protected by strict European privacy law (GDPR). - Track 200+ symptoms and experiences - Explore 400+ articles on your cycle, fertility, sex, pregnancy, perimenopause, and reproductive health. - Supported Features VoiceOver Voice Control Larger Text Dark Interface Reduced Motion Captions Read on 18 October 2026 8. [How effective is Clue Conceive?](https://support.helloclue.com/hc/en-us/articles/7955800430484-How-effective-is-Clue-Conceive) (Clue Help Center) - The technology’s algorithm, called DOT (Dynamic Optimal Timing), was tested by researchers at the Institute for Reproductive Health at Georgetown University (IRH). Read on 18 October 2026 9. [Which wearables can be connected with Clue?](https://support.helloclue.com/hc/en-us/articles/31172406685725-Which-wearables-can-be-connected-with-Clue) (Clue Help Center) - You can connect wearables from Oura, Apple Watch (for iOS), Withings, Ultrahuman, WHOOP, Fitbit, Polar, Luna, HUAWEI, and Garmin. Read on 18 October 2026 10. [Privacy portal FAQ](https://flo.health/privacy-portal/faq) (Flo Health) - Yes, you can use Flo without creating an account—this is called an “unregistered account,” meaning you use the app without signing up with an email and password, so your data is stored only on your device. - so your data is stored only on your device. However, this option has limitations—for example, you won’t be able to restore your data if you reinstall the app or switch devices. Read on 18 October 2026 11. [Flo privacy policy](https://flo.health/privacy-policy) (Flo Health) - This feature is available to all Flo users and lets you use the app without linking your name, email address or technical identifiers to your data. - We will never sell your data. - We do not share your health data with third parties for marketing purposes. - With your consent, Flo may collect and share information with AppsFlyer and its partners, Firebase and TikTok Ad Manager. - Your health data is not shared with AppsFlyer, Firebase or TikTok Ad Manager. - The personal data we collect is transferred to and processed in the US, where it is subject to US law and to other countries - Amazon Web Services, Inc. - We will handle your request within one month of receiving it. In some cases, such as for complete deletion of your personal data stored in our backup systems, it may take 90 days. - If you delete the App from your device or your account becomes inactive, we will retain your personal data for three years in case you decide to reactivate the Services or reinstall the App. Read on 18 October 2026 12. [What’s included in the free version?](https://help.flo.health/hc/en-us/articles/4411293934740-What-s-included-in-the-free-version) (Flo Help Center) - You are free to use our basic version as long as you like - 80+ symptoms to track - After you add your period dates to the app, Flo will start making predictions for your next period, ovulation, and fertile days. Read on 18 October 2026 13. [Health app & privacy](https://www.apple.com/legal/privacy/data/en/health-app/) (Apple) - When your device is locked with a passcode, Touch ID, or Face ID, all of your health and fitness data in the Health app — other than your Medical ID — is encrypted and inaccessible by default. - You can choose to use iCloud to keep your data up to date across your devices, choose to back up your data to an iTunes encrypted backup on your computer, or choose to share your data. - You are in control over which data is stored in the Health app and which data is shared with third-party apps and people you trust. - Apps must request the ability to read data from or write data to your Health app. - Apple will not be able to access or view any of the data that you share with other Health app users. - The Health app also gives you the ability to export a copy of your Health app data available on your device. To do so, tap your profile picture in the upper-right corner, then tap Export All Health Data. - You can review, edit, and delete your Health app data at any time. Read on 18 October 2026 14. [Track your menstrual cycle with Cycle Tracking](https://support.apple.com/en-us/120356) (Apple Support) - when you use the Cycle Tracking feature and have enabled two-factor authentication, your health data synced to iCloud is encrypted end-to-end and Apple does not have the key to decrypt the data - Ovulation estimates are available only with Apple Watch Series 8 or later and all Apple Watch Ultra models and are available only in certain countries or regions. - Cycle Tracking should not be used as a form of birth control. - Any health data synced to iCloud is encrypted both in transit and on our servers. - Tap Cycle History. You can tap Export PDF to generate a PDF of the last 12 months of your cycle history. - Tap the Remove button to each item, then tap Delete. You can also tap Delete All in the upper corner. - select Pregnancy, Lactation, or Contraceptive. - your health data synced to iCloud is encrypted end-to-end and Apple does not have the key to decrypt the data and therefore cannot read it. - Third-party apps that work with the Health app can also be used with Cycle Tracking. - export the last 12 months of your cycle history as a PDF to share with your healthcare provider. - Turn on notifications to tell you when your next period or fertile window is approaching. - These notifications can let you know when your fertile window is likely to start. - You can track symptoms, spotting, basal body temperature, and more. - You can enter this data manually or you can confirm data that was previously in the Health app from the use of third-party apps. - Cycle Tracking can inform you if your logged cycle history from the previous six months shows a pattern of irregular cycles, infrequent periods, prolonged periods, or persistent spotting. Read on 27 October 2026 15. [About ovulation estimates on Apple Watch](https://support.apple.com/en-us/120357) (Apple Support) - Apple Watch Series 8 or later, and all models of Apple Watch Ultra, can use wrist temperature data to estimate the likely day of ovulation after it has occurred and improve period predictions. - Ovulation estimates are estimates only, and do not guarantee that ovulation has occurred. Read on 18 October 2026 16. [Stardust FAQ](https://stardust.app/faq) (Stardust) - Is Stardust free? Absolutely—we believe everyone deserves access to high-quality cycle tracking. - Stardust Super (our premium subscription) - select ‘Trying to Conceive’ at the top of the screen. - Yes! Stardust is available on both iOS and Android. One thing worth noting is that we typically release new features on iOS first - our free version isn’t an afterthought—it’s thoughtfully built to be robust, insightful, and genuinely useful. - Tap the planet icon at the bottom of the screen to open Friend Sync. - We also offer a Partner Mode, so significant others can follow along, stay in sync, and support the people they love—no cycle required. - During onboarding, you can upload screenshots of your past or current period data. - To sync your account with your Oura ring, click on the alien icon on the bottom right hand corner - If you use a wearable device like an Apple Watch or Oura Ring, you can sync it in your settings and your temperatures will upload automatically. - Daily Horoscope: Personalized horoscopes that combine your birth chart with your current cycle phase - The Cyclepedia: A searchable library that helps you decode over 150 symptoms, feelings, and conditions - Daily Tarot: A personalized tarot reading that blends the wisdom of the cards with your current cycle phase - Signal Sync: Connects the dots between your sleep, energy, and activity patterns and your cycle phases, helping you spot trends and work with your body—not against it. - You’ll get accurate cycle predictions, daily insights, symptom tracking, and a little moon magic (yes, we sync with lunar cycles). Read on 27 October 2026 17. [Your data](https://stardust.app/your-data) (Stardust) - We do not sell data. Never have, never will. - By partnering with SuperTokens, an authentication platform, we are able to store your contact information externally, while your health data is tied only to a random account ID. - Our business is built on subscriptions, not your personal information. Read on 18 October 2026 18. [Glow: Ovulation & Period App, US App Store listing](https://apps.apple.com/us/app/glow-ovulation-period-app/id638021335) (Apple App Store) - Glow is free to download and use. Upgrading to Glow Premium will unlock: - Glow Premium (yearly) $69.99 - Languages English and 32 more English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi - Requires iOS 16.0 or later. - Glow also allows you to track other fertility signs, such as basal body temperature, cervical mucus, and sexual activity. - Seller Glow, Inc. - Advanced BBT chart - Glow will track your cycle length, flow, and symptoms, and provide you with insights into your unique cycle patterns. - Cycle Analysis - Comparative Insights - Community support: Glow also has a large and supportive community of users. - Private messaging - Apple Health Integration: Sync data between Glow and Apple Health app. Read on 27 October 2026 19. [Glow home page](https://glowing.com/) (Glow) - Your Glow Premium subscription will grant you access to Premium features from all Glow apps–from period to parenting! - Start with a 7-day free trial, then $59.99/yr. - Ad-free - What steps has Glow taken to protect my privacy in Glow Community on Web? - A Family Of Four Apps - Follow your prenatal health - Support your child’s health - 25M+ women worldwide have joined the Glow Community - Shared alerts on ovulation day, period start and end dates, and throughout the fertile window - Daily health logs for both female and male partners Read on 18 October 2026 20. [De Novo DEN170052: Natural Cycles (decision letter)](https://www.accessdata.fda.gov/cdrh_docs/pdf17/DEN170052.pdf) (US Food and Drug Administration) - Natural Cycles is a stand-alone software application, intended for women 18 years and older, to monitor their fertility. Natural Cycles can be used for preventing a pregnancy (contraception) or planning a pregnancy (conception). - Regulation Name: Software application for contraception Regulatory Class: Class II Product Code: PYT - Re: DEN170052 Trade/Device Name: Natural Cycles Read on 18 October 2026 21. [What do I need to use Natural Cycles?](https://help.naturalcycles.com/hc/en-us/articles/12131175565085-What-do-I-need-to-use-Natural-Cycles) (Natural Cycles Help Center) - To use Natural Cycles, you need an account with an active subscription. Read on 18 October 2026 22. [Natural Cycles instructions for use (US)](https://www.datocms-assets.com/21281/1785492932-1019-2-30-instructions_en_us.pdf) (Natural Cycles) - Natural Cycles is 93% effective under typical use, which means that 7 women out of 100 get pregnant during 1 year of use. - if you never have unprotected intercourse on red days, Natural Cycles is 98% effective, which means that 2 women out of 100 get pregnant during 1 year of use. - 2\. A thermometer, an NC° Band, an Oura Ring, an Apple Watch, a Garmin Wearable, or a WHOOP - Natural Cycles does not protect against sexually transmitted infections (STIs). - To get started you will need an oral basal thermometer. - You can still log data while offline, but the app cannot calculate your fertility status. Read on 18 October 2026 23. [What is the free version of Clue Pregnancy mode?](https://support.helloclue.com/hc/en-us/articles/19132028229533-What-is-the-free-version-of-Clue-Pregnancy-mode) (Clue Help Center) - The most affordable way to sign up for Clue Plus is directly via our website, helloclue.com. Read on 18 October 2026 24. [Why do I need a Clue account?](https://support.helloclue.com/hc/en-us/articles/360036966192-Why-do-I-need-a-Clue-account) (Clue Help Center) - To start using Clue, you’ll need to make a free account. Read on 18 October 2026 25. [Where is my data stored?](https://support.helloclue.com/hc/en-us/articles/360000757886-Where-is-my-data-stored) (Clue Help Center) - Your data is securely stored in our Clue servers located in Ireland and Germany. The servers are operated by Amazon Web Services. Read on 18 October 2026 26. [Can I use Clue Conceive predictions to prevent pregnancy?](https://support.helloclue.com/hc/en-us/articles/7955435714324-Can-I-use-Clue-Conceive-predictions-to-prevent-pregnancy) (Clue Help Center) - No, Clue Conceive cannot be used to prevent pregnancy. Read on 18 October 2026 27. [What is the price for a Flo subscription?](https://help.flo.health/hc/en-us/articles/4411278780564-What-is-the-price-for-a-Flo-subscription) (Flo Help Center) - We offer a monthly and a yearly subscription. If you subscribe to a one-year subscription, it will be paid in a single upfront payment. Read on 18 October 2026 28. [Flo Period & Pregnancy Tracker, US App Store listing](https://apps.apple.com/us/app/flo-period-pregnancy-tracker/id1038369065) (Apple App Store) - Free · In‑App Purchases - Flo Health does not provide medical advice, diagnosis, or treatment, and is not a method of birth control or conception aid. - Flo Premium $1.99 Flo Premium $59.99 Flo Ovulation & Health tracker $11.49 Flo Premium $7.49 Flo Premium $47.99 Flo Premium $14.99 - Data Used to Track You The following data may be used to track you across apps and websites owned by other companies: Purchases Location Identifiers Usage Data - English, Danish, Finnish, French, German, Indonesian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese - iPhone Requires iOS 17.0 or later. Apple Vision Requires visionOS 1.0 or later. Apple Watch Requires watchOS 10.0 or later. - Once you conceive, switch to Pregnancy Mode for checklists and expert guidance. - Log LH/ovulation test strip results and basal body temperature - Perimenopause Score to follow symptom changes - Flo Health is a science-backed cycle, ovulation, pregnancy, and period tracker with over 570 million downloads worldwide.\* - 24/7 virtual Health Assistant: Explore instant, tailored insights about your body and cycle trends Read on 18 October 2026 29. [Why register your account?](https://help.flo.health/hc/en-us/articles/4402670159252-Why-register-your-account) (Flo Help Center) - If you use Flo without registering your account, you won’t be able to log in from another device. If you log out, you risk losing your data Read on 18 October 2026 30. [Is my data secure?](https://help.flo.health/hc/en-us/articles/360042626611-Is-my-data-secure) (Flo Help Center) - Flo data centers are handled by Amazon Web Services Read on 18 October 2026 31. [Your data and privacy](https://flo.health/your-data-and-privacy) (Flo Health) - When your data is stored on our servers, we encrypt it with AES-256. Read on 18 October 2026 32. [Flo terms of use](https://flo.health/terms-of-service) (Flo Health) - OR SERVE AS A BIRTH CONTROL METHOD OR CONTRACEPTION. - We are Flo Health UK Limited, a company incorporated in the United Kingdom, company number 12898410. Read on 18 October 2026 33. [Apple Health, US App Store listing](https://apps.apple.com/us/app/health/id1242545199) (Apple App Store) - Seller Apple Inc. - Apple Health Health & Fitness Free - The following data may be collected but it is not linked to your identity: Health & Fitness Location Search History Identifiers Usage Data Sensitive Info Diagnostics Other Data - Data Not Linked to You The following data may be collected but it is not linked to your identity: Health & Fitness - English and 32 more English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese - Language EN + 32 More iPhone, iPad Read on 18 October 2026 34. [Privacy features](https://www.apple.com/privacy/features/) (Apple) - Apps that work with HealthKit are prohibited from using or disclosing HealthKit data to third parties for advertising or other data mining purposes Read on 18 October 2026 35. [Apple Health](https://www.apple.com/health/) (Apple) - The Cycle Tracking experience on iPhone, Apple Watch, and iPad lets you log your period and record symptoms or cycle factors - The temperature sensing feature is not intended for medical use. - With Cycle Tracking you can receive a notification if your logged cycle history shows a possible deviation, such as irregular, infrequent, or prolonged periods and persistent spotting. - Most recently, data from our ongoing Women’s Health Study — the first of its kind — has helped to improve Cycle Tracking predictions. Read on 18 October 2026 36. [Stardust: Period Tracker, US App Store listing](https://apps.apple.com/us/app/stardust-period-tracker/id1495829322) (Apple App Store) - Pregnancy Mode is Stardust's week-by-week pregnancy tracker. - Note: Stardust should not be used as birth control or contraception. - In-App Purchases Yes All Access $2.99 Annual Plan $29.99 All Access $3.99 Monthly Plan $6.99 - The following data may be used to track you across apps and websites owned by other companies: Purchases Identifiers Usage Data - Languages English and 2 more English, Portuguese, Spanish - Only for iPhone - Stardust is a free period, ovulation, and pregnancy tracker that helps you understand your period, hormones, and every phase of your menstrual cycle. - Follow how your hormones shift across your menstrual cycle, day by day - Invite partners or close friends to stay in sync with your period, TTC journey, or pregnancy. Read on 27 October 2026 37. [Stardust privacy policy and health data privacy policy](https://stardust.app/privacy-policy) (Stardust) - We do not use or disclose Health Data to serve digital advertising. - we will share your Internet Activity Information with AppsFlyer and its integrated partners and Firebase to promote our Services and find new users - We collect information directly from you when you register an account on our app - if you create or log into your Stardust account through a third-party platform (such as Apple or Google) - we store your contact information with third parties and we store your health data against a random account ID. This means that we do not link your health data to you. - For example, companies that host our servers or provide customer support may need access to health data to provide those functions. - We may share each of the categories of health data described above with the following categories of third parties: - Users can delete their information through their app settings. - To delete your health data, you can hit the ‘delete’ button within your profile. - For example, if you connect Apple HealthKit or Google Health with the Services, we may import certain information under your direction such as step count/activity data, temperature, sleep data, and menstruation data. Read on 27 October 2026 38. [Stardust terms of use](https://stardust.app/terms-of-use) (Stardust) - you agree that we, our affiliates, and third party partners may place advertising on the Services. - To access our Services, you may be required to register with the Site and create a user account - Deletion of your Account means that we will delete all of your Account data, except as required by applicable law. - The Services should not be used for pregnancy-related purposes. - entered into by and between you and Stardust App LLC Read on 18 October 2026 39. [How much does Glow Premium cost?](https://support.glowing.com/help/en-us/25-premium-related-questions/119-how-much-does-glow-premium-cost) (Glow Help Center) - Annual: $69.99 ($5.83/month \*12 months). Read on 18 October 2026 40. [Glow privacy policy](https://glowing.com/privacy-policy) (Glow) - we will delete all “Key Health Data” (e.g., period data, health logs, etc.) from our servers, but leave it on your personal device. - We do not sell or share health information from our users. - We may engage third-party advertisers or advertising companies to display ads on our Service and other online services. - You can opt-out of personalized ads on our apps and tracking for interest-based advertising purposes by using the disable personalized ads feature in your settings. - that you provide to create an account on the Service, including your name, email address, password, date of birth and mobile phone number. - opting into this feature may cause certain features of our Apps to be limited. - We do not sell Personal Information for money. However, some privacy laws broadly define “sale,” “share,” and “targeted advertising” to include certain disclosures involving cookies, pixels, analytics, or advertising technologies. - the categories of Personal Information that we have sold or shared include identifiers (e.g., IP addresses) and internet or other similar network activity. - Notice of Right to Opt-Out of Sale/Sharing of and the “Do Not Sell or Share My Personal Information” Link - we will complete the deletion within forty-five days. - You will then be the only person with access to these health data and no one else. - This Privacy Policy describes the information and privacy practices of Upward Labs Holdings, Inc. (“Glow,” “we”, “us” or “our”) Read on 18 October 2026 41. [I can’t remember my 4-digit passcode](https://support.glowing.com/help/en-us/14-app-basics/25-i-can-t-remember-my-4-digit-passcode-and-now-i-m-locked-out-of-the-app-what-should-i-do) (Glow Help Center) - After you reinstall, sign in with your email and password. - I can't remember my 4 digit passcode Read on 18 October 2026 42. [Where does Glow store the data I share?](https://support.glowing.com/help/en-us/33-data-collection/174-where-does-glow-store-the-data-i-share) (Glow Help Center) - We store your data in Amazon Web Services (AWS) databases (RDS) using AES-256 Read on 18 October 2026 43. [Is my data encrypted?](https://support.glowing.com/help/en-us/35-app-security/181-is-my-data-encrypted) (Glow Help Center) - Glow uses strong encryption to protect your data, both in transit and at rest Read on 18 October 2026 44. [Glow, Google Play listing (US)](https://play.google.com/store/apps/details?id=com.glow.android&hl=en_US&gl=US) (Google Play) - The Glow App is intended as an aid in ovulation prediction to facilitate conception ( not to be used for contraception ). - Ovulation Tracker App | Glow - From your first period to post-menopause, Glow is a comprehensive period tracker that adapts to you. Read on 18 October 2026 45. [How do I add birth control to the app?](https://support.glowing.com/help/en-us/14-app-basics/43-how-do-i-add-birth-control-to-the-app-is-my-birth-control-available-on-the-app-can-you-add-this-type-of-birth-control-to-the-app) (Glow Help Center) - To add birth control, your account must be set to “Avoiding pregnancy.” Read on 18 October 2026 46. [Natural Cycles: Birth Control, US App Store listing](https://apps.apple.com/us/app/natural-cycles-birth-control/id765535549) (Apple App Store) - In-App Purchases Yes Monthly $21.99 Annual $149.99 - The following data may be used to track you across apps and websites owned by other companies: Contact Info - Third-Party Advertising Contact Info Email Address - Languages English and 3 more English, Portuguese, Spanish, Swedish - Requires iOS 16.7 or later. - Natural Cycles is authorized for use as birth control in the US, Canada, the UK, the EU/EEA, Australia, Singapore, Brazil, and South Korea. Outside these regions, the app is intended for fertility monitoring only. - NC° Birth Control is a non-hormonal contraception with no side effects. - Unlike period trackers, our algorithm uses personalized temperature trends data to detect ovulation. Read on 18 October 2026 47. [Natural Cycles privacy policy](https://www.naturalcycles.com/other/legal/privacy) (Natural Cycles) - We do not sell or share any of the following for the purpose of targeted advertising (such as Custom and Lookalike Audiences): any fertility status data, period data, sexual activity data, medical condition data, or logged symptom or pregnancy data. - such as firewalls, encrypted storage, pseudonymization, regular software updates, security scans, access control, audit logging and review of admin actions as well as external penetration tests - Natural Cycles never sells your Personal Data - NOTICE: We may sell your sensitive personal data. - Consumer Health Data that may be Sold are identifiers and metadata (such as commercial information concerning your interest in Natural Cycles, geolocation data, as well as internet or other similar network activity). - For clarity, we do not Sell or Share any fertility status data, period data, sexual activity data, medical condition data, or logged symptom or pregnancy data. - request a copy of your Personal Data in a structured, commonly used and machine readable format and that we transfer your personal data to another controller. Read on 18 October 2026 48. [How does Natural Cycles protect my data?](https://help.naturalcycles.com/hc/en-us/articles/360003330234-How-does-Natural-Cycles-protect-my-data) (Natural Cycles Help Center) - Sensitive data provided by you is stored on our servers. - We choose to store sensitive data within the EEA (European Economic Area) as much as possible. However, data can be transferred outside of the EEA - you may ask us to delete your data at any time in accordance with our Privacy Policy or export it for you. Read on 18 October 2026 49. [NC° Secure](https://www.naturalcycles.com/secure) (Natural Cycles) - It separates your identity from your fertility data, so no one, not even us at Natural Cycles, can link your NC° data to you. - you can turn on Face ID when logging in to the app on an iOS device Read on 18 October 2026 50. [Natural Cycles instructions for use (EU)](https://www.datocms-assets.com/21281/1785492931-1019-2-30-instructions-en_eu.pdf) (Natural Cycles) - We declare that this product meets all applicable requirements of the Regulation (EU) 2017/745 for medical devices (MDR) and bears the mark CE0123. - NC° Birth Control and NC° Plan Pregnancy are Medical Device Software modes under Regulation (EU) 2017/745 for medical devices (MDR). Read on 18 October 2026 51. [How can I delete my Clue account?](https://support.helloclue.com/hc/en-us/articles/4415640538004-How-can-I-delete-my-Clue-account) (Clue Help Center) - If you’d like to delete your Clue account, you can do this directly through the Clue app. - Once you delete your account you won’t be able to reactivate it, or get your tracked health data back. Read on 18 October 2026 ## About this comparison Clue, Flo, Apple Health, Stardust, Glow and Natural Cycles are trademarks of their owners. Ruva isn’t affiliated with, endorsed by or sponsored by any of them, and we use their names only to say which apps we mean. We don’t show their logos. Apps, prices and policies change, and prices differ by country, so check the official pages before you decide. Ruva is not a method of contraception and not a medical device. Its dates are estimates based on what you log. Spotted something wrong or out of date? [Tell us through the support page](https://myruva.co/support) and we’ll check it and correct the page. [hello@myruva.co](mailto:hello@myruva.co?subject=Comparison%20correction)