Period Tracker by GP Apps vs Stardust Period Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Period Tracker by GP Apps
Easily track your menstrual cycles, predict future periods, and monitor fertility. Log symptoms, moods, and weight with detailed charts and customizable notes. Includes advanced modes for trying to conceive and pregnancy tracking, with privacy features and data backup.
- Period cycle tracking and prediction
- Fertility and ovulation tracking
- Symptom and mood logging
- Weight and temperature tracking
- Customizable notes and symptoms
- Pregnancy mode and countdown
- Data backup and export
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Period Tracker, the easiest way to track your health! *Now supports HealthKit, 3DTouch, TouchID, portrait charts, Advanced TTC Mode (the easiest way to get pregnant by following the homepage timeline’s simple prompted instructions!), and Pregnancy Mode with articles and week-by-week images. Period Tracker is SIMPLE and CUTE. * Press a button at the start of your period every month. Period Tracker logs your dates and calculates the average of your past 3 months' menstrual cycles to predict the start date of your next period. * View your current and future period dates, ovulation and fertile days, moods, symptoms, weight, temp, and fertility notes in a simple month-view calendar. * Discreet iPhone icon simply reads "PTracker." Period Tracker is FILLED WITH FEATURES. * Take daily notes of menstrual symptoms including Spotting, Flow, Cramps, Headaches, Backaches, Bloating, Tender Breasts, and Body Aches! * Track your weight, temperature and moods (over 30+ moods to choose from!) * Add custom symptoms and moods * Charts! Beautiful, comprehensive and handy. Charts show weight, temp, symptoms, period length, cycle length, and more. * Backup/Restore your data with your online backup and restore account. (works across platforms) * Homescreen shows your predicted ovulation, eight day "fertile window,” and your cycle day. Great for trying to conceive. * Pregnancy mode activates countdown to baby's due date and week-by-week articles. * Protect your privacy with TOUCH ID or with a passcode option that is fast and easy. * Export your period dates and notes to email for doctor's visits. Period Tracker is loved by millions of users. MommaRed - "I really like this application. It is easy to use, easy to track and plan for upcoming events. The recent updates have made it even better. One of my favorite iPhone apps." Blanczz226 - "This is one of my favorite apps. I use it every month and it's extremely accurate. Worth the $ for sure" GeekSugar.com - "Period Tracker is the ultimate menstrual mentor. You enter in your info, and it tracks your cycles, letting you keep notes about your activities and well being, all the while using twee 'lil hearts .and flowers to denote important days." Celstemc - "One of my first apps and I am completely in love with it! Won't use another one like it!! Cute and easy to use!" Subscription Details By subscribing to the Period Tracker Patron program you receive additional features. Subscription purchased through the app will be charged to your iTunes account. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period at the cost of $9.99. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. Terms of service: https://gpapps.com/support/eula/ Privacy policy: https://gpapps.com/support/privacy-policy/ Disclaimer: Period Tracker period and fertility forecasts may not be accurate and should not be used to prevent unwanted pregnancy. To forecast ovulation Period Tracker calculates 14 days before the projected start date of one's next period. Forecast accuracy depends on a number of factors including how regular one's cycle length is, when one actually ovulates during the cycle, and how many periods have been logged in the app. Anxiety, stress, diet, nutrition, exercise, environment, medications, age and other factors can also affect one's cycle from month to month. Please email comments and suggestions to supportgpa@gmail.com.
Stardust Period Tracker
This health app helps you understand and track your menstrual cycle, ovulation, and pregnancy. It combines scientific data with ancient wisdom and astronomy to provide personalized insights and goal manifestation tools. Features include period predictions, symptom tracking, and lunar synchronicity.
- Period and ovulation prediction
- Pregnancy tracking with AR
- Daily personalized insights
- Symptom and mood tracking
- Lunar cycle synchronization
- Goal manifestation tools
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Stardust is a free period, ovulation, and pregnancy tracker that helps you understand your period, hormones, and every phase of your menstrual cycle. We blend science, ancient wisdom, astronomy, and AI to make period tracking feel simple, intuitive, and meaningful. Track your period, log symptoms, follow hormonal changes, and watch your cycle unfold day by day. Stardust is the cycle tracker that turns daily period tracking into real self-understanding. PERIOD TRACKER & CYCLE TRACKER Decode your period and every phase of your menstrual cycle with a period tracker built to feel intuitive. - Predict your next period and spot PMS patterns before they start - Get personal daily insights based on your menstrual cycle and hormone patterns - See predictions for your period, PMS, cravings, moods, and fertility - Get enhanced cycle tracking insights using your sleep and activity data OVULATION TRACKER & TRYING TO CONCEIVE On your TTC journey, use Stardust as your ovulation tracker to predict your fertile window and understand your cycle on a deeper level. - Get ovulation forecasts and fertility awareness to plan pregnancy - Connect wearables like Apple Watch and Oura Ring to track your Basal Body Temperature, or log it manually - Follow how your hormones shift across your menstrual cycle, day by day PREGNANCY TRACKER Pregnancy Mode is Stardust's week-by-week pregnancy tracker. Switch it on to follow your full hormonal journey through pregnancy. - See weekly baby growth, with 3D and AR to view your baby's size right in your belly - Get daily affirmations and symptom tracking throughout pregnancy - Read weekly insights on health, exercise, nutrition, and ancient wisdom - Explore hormone and moon-based insights with zodiac sign matchups between you and your baby SYNC YOUR CYCLE WITH THE MOON Stardust goes beyond a standard period tracker to connect your menstrual cycle to the cosmos. - Use tools for cycle syncing and aligning your menstrual cycle with lunar phases - Explore a moon calendar and zodiac insights with symbolism and folklore mapped to your cycle - Pull a daily card and get readings tuned to your moon, sun, and rising sign, and cycle phase TRACK YOUR CYCLE TOGETHER Invite partners or close friends to stay in sync with your period, TTC journey, or pregnancy. WHO STARDUST IS FOR Stardust is for anyone tracking a period, predicting ovulation on a TTC journey, tracking a pregnancy week by week, following their symptoms and hormones, or wanting a closer connection between their cycle and the moon. PRIVACY AT ITS CORE Founded and led by women, Stardust is a period tracker built with privacy at its core. Your cycle data and menstrual cycle history are protected. We never sell or share your personal health information. PRIVACY POLICY & TERMS OF SERVICE https://stardust.app/privacy-policy https://stardust.app/terms-of-use CONNECT WITH US Web – stardust.app Instagram – @stardust TikTok – @stardust.app Note: Stardust should not be used as birth control or contraception. The app does not substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider. Having technical issues or questions about your cycle? Email support@stardust.app.
Screenshots
Verdict
Period Tracker by GP Apps and Stardust Period Tracker both sit at 4.8 stars, but that hides the real split: 91% of Period Tracker by GP Apps's written reviews are positive against 55% of Stardust Period Tracker's. Stardust Period Tracker's advantage is update cadence (every 2 weeks vs every 2 months) and chart position (#40 vs unranked). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Period Tracker by GP Apps sells 1 in-app purchase, starting at $9.99 per year and Stardust Period Tracker sells 20 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for Period Tracker by GP Apps against 4.8 for Stardust Period Tracker. Both are backed by a comparable volume of ratings — 74K and 118K respectively. Written reviews are what separate them: 91% of Period Tracker by GP Apps's written reviews are positive against 55% of Stardust Period Tracker's.
Period Tracker by GP Apps ships an update every 2 months, Stardust Period Tracker every 2 weeks. Both last shipped on October 18, 2026.
| Parameter | Period Tracker by GP Apps | Stardust Period Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (74K ratings) | 4.8 (118K ratings) |
| Positive reviews | 91.2% of reviews — better | 54.8% of reviews |
| Number of ratings | 74K | 118K — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | — | #40 — better |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.2 |
| Further details — not scored | ||
| Size | 64 MB | 211 MB |
| Age rating | 12+ | 12+ |
| Developer | GP Apps | Stardust App LLC (New York) |
Customer experience
Period Tracker by GP Apps
Stardust Period Tracker
User reviews
Period Tracker by GP Apps
From 74K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Accurate period predictions
- 💡 Customizable symptom and mood tracking
- 📆 Helpful for planning around cycle
- 🤰 Useful for tracking fertility and pregnancy
Room to improve
- 🐛 Irregular cycles not handled well
- 🔒 Concerns about data privacy and security
- 💰 Paywall for some features
- 🎨 Outdated or unappealing design
Stardust Period Tracker
From 118K App Store ratingsWhat we love
- 💕 Beautiful, aesthetically pleasing design
- 🌙 Syncs with moon cycles
- 🌟 Cute, quirky messages and notifications
- 🤝 Owned and run by women
- 🔒 Protects user privacy and data
Room to improve
- 🐛 Frequent glitches, bugs, and crashes
- 🔁 Resets/deletes user data after updates
- 🕰️ Inaccurate period predictions and cycle tracking
- 🔒 Concerns about data privacy and sharing
- 🤔 Confusing or unintuitive interface
Bugs and requests
Period Tracker by GP Apps
Reported bugs
3 issues- Period start/end dates not saving correctly
- Ovulation predictions often inaccurate
- Crashes or freezes when logging data
Requested features
4 requests- Add option to track irregular cycles
- Improve data backup and sync across devices
- Provide more customization options for layout and themes
- Integrate with other health tracking apps
Stardust Period Tracker
Reported bugs
5 issues- Logging out and losing all user data
- Inability to update or adjust cycle information
- Calendar and cycle predictions not syncing correctly
- Notifications not working as expected
- Certain features/sections not loading properly
Requested features
6 requests- Add more symptom and mood tracking options
- Implement graph/chart view to visualize cycle data
- Allow custom notes and reminders
- Provide more personalized insights and recommendations
- Improve sync and data backup functionality
Show 1 moreShow fewer
- Offer more inclusive language and features for diverse users
In-app purchases
Period Tracker by GP Apps
- Annual Member14 Days trial$9.991 Year
Stardust Period Tracker
- All Access$2.997 Days
- All Access$3.991 Month
- All Access$4.991 Month
Show 17 moreShow fewer
- Monthly Plan2 variants$6.991 Month
- Monthly plan with 7 day trial7 Days trial$6.991 Month
- All Access$24.991 Year
- Annual plan with 7-days trial7 Days trial$24.991 Year
- $24.99/year with 3-days trial3 Days trial$24.991 Year
- Annual Plan7 Days trial$29.991 Year
- Annual Plan with 1 month trial1 Month trial$29.991 Year
- Annual Plan with 3-days trial3 Days trial$29.991 Year
- Stardust All Access1 Year trial$29.991 Year
- All Access$39.991 Year
- Annual Plan with 7-days trial7 Days trial$39.991 Year
- Stardust All Access1 Year trial$39.991 Year
- Annual Plan with 3-days trial3 Days trial$39.991 Year
- Annual plan with 7-days trial7 Days trial$49.991 Year
- $49.99/year$49.991 Year
- $89.99/year with 7-day trial7 Days trial$89.991 Year
- $89.99/year$89.991 Year
Questions
Is Period Tracker by GP Apps free?
Is Stardust Period Tracker free?
Which has better reviews, Period Tracker by GP Apps or Stardust Period Tracker?
Do Period Tracker by GP Apps or Stardust Period Tracker have ads?
Which is updated more often, Period Tracker by GP Apps or Stardust Period Tracker?
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