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Best Free Period Tracking App in 2026
Key takeaways
- Clue and Flo offer the deepest free cycle tracking, with Clue leaning more toward privacy and a science-led design.
- Apple Health covers basic cycle tracking at no cost for iPhone users, with data kept on device where possible.
- Euki keeps data local on your phone and is free, which suits users who want strong privacy without an account.
- Stardust and WomanLog suit users who want a friendly daily routine, though deeper analysis sits behind paid tiers.
- This article is for general information only and is not medical advice. For health concerns, speak to a clinician.
- Read the privacy policy before logging sensitive health data, since data handling varies a lot between apps.
Quick comparison
| Pick | Great for | Pricing starts at | Free tier | |
|---|---|---|---|---|
 Clue | Privacy and science-led tracking | Free | Yes | Visit |
 Flo | Deep features and content | Free | Yes | Visit |
 Apple Health | Built-in iPhone tracking | Free | Yes | Visit |
 Stardust | Daily ritual and design | Free | Yes | Visit |
 Euki | Local-only private tracking | Free | Yes | Visit |
 WomanLog | Simple calendar tracking | Free | Yes | Visit |
 Ovia | Cycle plus fertility and pregnancy | Free | Yes | Visit |
 Natural Cycles | Temperature-based predictions | See website | No | Visit |
The best free period tracking app options
We compared the best period tracking apps on free tier quality, cycle and ovulation predictions, symptom logging, privacy practices and platform support. The free tier matters most here, since many apps advertise as free while keeping useful analysis behind a subscription.
Clue is a calm, clinical tracker that focuses on cycle data without lifestyle framing. Users can log periods, symptoms, moods, pain and other cycle signs, and predictions are based on their own history rather than generic averages. The interface is gender-neutral and easy to read, which many users prefer for daily logging.
The free tier covers core tracking well, while Clue Plus adds pregnancy mode, wearable sync and deeper cycle insights at around 39.99 dollars per year. If privacy and clear documentation matter most, Clue is our pick for most people among the best free period tracker apps.
- Clear, science-led design
- Wide symptom tracking
- GDPR-based privacy practices from a Berlin company
- Deeper analysis and wearable sync sit behind Clue Plus
- No habit or nutrition tracking
Flo is the most widely used period tracker, with cycle predictions, symptom logging, a large health article library and pregnancy modes. The app also offers an anonymous mode and partner sharing, plus a virtual health assistant on Premium. For users who want content and community alongside tracking, Flo has the deepest library in this list.
The free tier is usable, but Premium opens up the most useful extras, and Flo has faced past regulatory action over data sharing, so read its current privacy policy before use. If you want the best period tracking app free tier with the most content, Flo is still a strong choice, with privacy checks done first.
- Very wide feature set and article library
- Community features for some users
- Pregnancy and partner modes
- Many useful features sit behind Premium
- Past privacy record deserves a careful read
Apple Health includes cycle tracking built into iOS, so iPhone users can log periods, symptoms and spotting without downloading another app. Data can be kept on device, with optional encrypted iCloud sync when two-factor authentication is on. Apple Watch temperature data can also feed into cycle estimates for some users.
It lacks the depth of Clue or Flo for symptom analysis, community or detailed predictions. For a user who wants basic, private tracking without another account, Apple Health is the best cycle tracker app at no cost, since it is already on the phone.
- No extra app or subscription needed
- Cycle data can stay on device
- Works with Apple Watch temperature data
- Symptom list is shorter than dedicated apps
- IPhone only, with no Android version
Stardust stands out for design and daily use, with hormone insights, moon-phase content and a routine that encourages regular logging. Users can sync cycles with friends, track periods and symptoms, and get a daily readout that feels more personal than a plain calendar. The free tier covers core tracking well enough for many users.
Symptom tracking is lighter than in Clue or Flo, and the app has faced privacy criticism in the past, so check its current policy and settings. If a plain tracker feels like a chore and design keeps you logging, Stardust is one of the best free period tracking apps for daily use.
- Friendly daily hormone and cycle insights
- Friend syncing
- Usable free core tracking
- Symptom depth is lighter than Clue or Flo
- Past privacy criticism means you should read the current policy
Euki is a nonprofit tracker that keeps cycle data local on your phone, with no account needed for core tracking. That local-only design is a strong privacy advantage for users who do not want cycle data stored in the cloud. The app covers period tracking, basic symptom logging and health information in a straightforward interface.
The trade-off is simplicity: there is no community, no wearable sync and no deep analysis. If privacy is your top concern and you are happy with basic tracking, Euki is the best free period tracker app for keeping data on your own device.
- Data stays on your phone
- No account required for core use
- Free and nonprofit backed
- Feature set is simpler than Flo or Clue
- No cloud sync if you change phones without a backup
WomanLog is a long-running tracker that focuses on a clear calendar, cycle predictions and symptom logs without extra content or community features. Users can track periods, ovulation, weight, moods and symptoms, set reminders and view cycle history at a glance. That simplicity suits users who just want a reliable calendar.
Newer apps look more polished, and some detailed analysis sits behind a paid upgrade. For a user who wants the best free period tracking apps with a simple, no-fuss calendar, WomanLog remains a dependable choice.
- Simple calendar and prediction views
- Symptom and mood logging
- Works on iOS and Android
- Design feels dated next to newer apps
- Deeper features need the paid version
Ovia covers the full journey from cycle tracking through fertility and pregnancy in one free app, with predictions, symptom logging and health articles. That breadth helps users who want to keep one app as their needs change, rather than switching trackers at each stage. Sharing options also let a partner follow along if wanted.
Because data is cloud based, users should review privacy settings and data sharing options before logging sensitive details. For free, broad tracking that covers cycle, fertility and pregnancy, Ovia is one of the best period tracking apps free options in this list.
- Free core tracking for cycle, fertility and pregnancy
- Useful health content
- Partner and family sharing options
- Data is cloud based, so privacy settings need a check
- Interface includes many features that some users will not need
Natural Cycles differs from most free trackers, since it bases predictions on basal body temperature and cycle data, and it is cleared as a medical device in some regions. That method suits users who want temperature-based insight and are willing to log temperatures regularly. The analysis is more detailed than a simple calendar prediction.
There is no fully free plan, so it does not fit a strict free-only list on price, but it earns a place here as a comparison for users who outgrow free calendar apps. If you want temperature-based tracking and understand its limits, Natural Cycles is worth comparing against Clue and Flo, and it is not a substitute for medical advice.
- Uses temperature data for predictions
- Cleared as a medical device in some regions
- Detailed cycle analysis
- No free plan for full use
- Requires regular temperature logging to work well
How we picked these
We compared official app pages, app store listings and recent period tracker comparisons, and checked each app for free tier quality, cycle and ovulation features, symptom depth and privacy practices. We favoured apps with a usable free tier and clear privacy information, and noted where past privacy issues or cloud storage deserve a careful read. We did not claim hands-on testing, and we did not give medical advice. Prices marked as See website were not published in a verifiable form at the time of writing.
What to check before you choose a period tracker
Start with privacy, since cycle data is sensitive health data. Check where data is stored, whether an account is required, whether data is sold or shared with advertisers, and whether you can delete or export your history. Local-only apps like Euki offer the strongest privacy by design, while cloud apps need a careful settings check.
Next, test the free tier for a full cycle before paying. Log periods, symptoms and moods, check whether predictions update with your history, and see which features are locked behind a subscription. A free app that hides ovulation predictions or history behind a paywall may not suit your needs, even if the download is free.
Predictions and irregular cycles
Calendar predictions work best for regular cycles and are less reliable for irregular cycles, stress, illness or hormonal changes. Temperature-based tools and symptom logs can add context, but no consumer app can diagnose a health condition. If cycles are very irregular, painful or concerning, speak to a clinician rather than relying on an app prediction.
Keeping data safe
Use a strong passcode or biometric lock on your phone, review app permissions, and turn off ad tracking where the app allows it. If you switch phones, check whether your history transfers or stays local, and back up data if the app supports export. Small settings checks make a real difference for sensitive health data.
Frequently asked questions
What is the best free period tracking app?
Clue is our pick for most people, with a strong free tier, wide symptom tracking and clear privacy practices. Apple Health suits iPhone users who want basic tracking without another app, while Euki suits users who want data kept local on their phone. Test one for a full cycle before paying for extras.
What are the best free cycle tracking apps for ovulation?
Clue, Flo, Ovia and WomanLog all offer ovulation predictions on their free tiers, based on cycle history and logged symptoms. Natural Cycles adds temperature-based predictions, but it is not free. Remember that app predictions are estimates, not medical advice, and accuracy varies with cycle regularity.
What is the best period ovulation tracker app for privacy?
Euki is the strongest privacy pick, since data stays on your phone and no account is needed for core use. Apple Health also keeps data on device where possible for iPhone users. Clue offers GDPR-based protections from a Berlin company, while cloud apps like Flo and Ovia need a privacy settings check.
Are free period tracker apps really free?
Most are free to download with a usable core tier, while deeper analysis, pregnancy modes or wearable sync sit behind a subscription. Flo, Clue and Stardust all follow that pattern, while Apple Health and Euki are fully free for core tracking. Check what is locked before relying on a feature.
Can a period tracker app diagnose health problems?
No, period trackers can log patterns and show trends, but they cannot diagnose conditions such as PCOS, endometriosis or thyroid problems. If you notice very irregular cycles, severe pain or other concerning symptoms, speak to a clinician. Use app data as a record to share, not as a diagnosis.
Which period tracking apps work on Android and iPhone?
Clue, Flo, Stardust, Euki, WomanLog and Ovia work on both iOS and Android. Apple Health is iPhone only, since it is built into iOS. Check app store listings for your device and region, since availability and pricing can vary.
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