# Selene - BBT & Period Tracker — Fertility Ovulation Calendar > Period, BBT, and ovulation tracker with simple logging and clear visualizations. (iPhone/iPad app by Satomi Furusawa.) - Source: https://appshunter.io/ios/app/selene-bbt-and-period-tracker/id974923308 (this page in markdown: same URL + `.md`) - Developer: [Satomi Furusawa](https://appshunter.io/developer/974923307) - Category: Health & Fitness, Medical - Price: Free with in-app purchases - Rating: 4.00/5 from 5 App Store ratings · 1 written reviews indexed - Age rating: 12+ - Requires: iOS 17.0 · 51 MB - Languages: American English, French (France), German (Germany), Indonesian, Italian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China) and 4 more - Released: 2016-06-29 - Data updated: 2026-06-01 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/selene-bbt-and-period-tracker/id974923308/reviews.md ## What is Selene? Selene - Simple & Beautiful Period Tracker Understand your body's rhythm and make every day more comfortable. Selene provides period tracking, BBT recording, and ovulation prediction with a simple and intuitive design. [Main Features: All Free] Period Cycle Management • Just record your period — cycles are automatically calculated. Automatic prediction of your next period • Visualize past cycle data clearly • Understand cycle variation patterns Basal Body Temperature (BBT) Tracking • Track daily BBT with easy-to-read graphs • Predict ovulation from temperature changes • Perfect for those trying to conceive • Morning assist feature for instant recording Ovulation Prediction • Automatic calculation of ovulation day from cycle data • Display fertile window on calendar • Visualize your body's rhythm Cervical Mucus Tracking • Record your cervical mucus status in detail • Understand changes across your cycle Simple Logging • Easy recording of period, BBT, weight, cervical mucus, intercourse, and pill intake • Comfortable input with haptic feedback • Track only what you need • Data sync with Health app Beautiful Visuals • Clear calendar view • Easy-to-understand graphs and charts [Selene PLUS Features] (1 Month Free Trial) Upgrade to PLUS plan for even more powerful features: Weight Graphs • Track weight changes alongside your cycle • Understand weight fluctuation patterns by cycle phase Multiple View Layouts • Cycle View - Detailed analysis of each cycle • Quarterly View - See patterns over 3 months • Half-Yearly View - Check long-term trends • Yearly View - Overview of annual data Unlimited History Access • Access up to 50 years of historical data • Perfect for long-term health management • Data export feature (Coming Soon) [Perfect For] • Want to track period cycles accurately • Trying to conceive and want to know ovulation day • Record BBT for health management • Looking for a simple and easy-to-use app • Value your privacy • Want to manage long-term health data Note: Prediction results are for reference purposes only. Please consult healthcare professionals for important decisions. [Privacy Protection] Your data is completely protected: • All data stored securely on your device • No data sharing with third parties • Passcode lock support (Coming Soon) • Use with confidence ※ Auto-renewal can be changed anytime in Apple ID account settings ※ After free trial ends, automatically converts to paid plan [Download Now] Start understanding your body's rhythm and living a healthier life with Selene. --- Privacy Policy: https://www.iubenda.com/privacy-policy/7872296 Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For questions or feedback, please contact us from the app settings. ## Key features - Period cycle management - Basal body temperature tracking - Ovulation prediction - Cervical mucus tracking - Simple logging with haptic feedback - Data sync with Health app - Beautiful calendar and graph views ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Selene PLUS | $9.99 | per year | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/selene-bbt-and-period-tracker/id974923308/reviews.md ### 1/5 — Crash *2022-09-08* Like the ease of the app however it began crashing. App was deleted and no longer in use ## Frequently asked questions about Selene ### What is Selene? Selene is a period, basal body temperature (BBT), and ovulation tracker designed to help users understand their body's natural rhythms. It offers simple logging and clear visualizations for managing menstrual cycles and fertility. ### Is Selene free to use? The core features of Selene, including period tracking, BBT recording, and ovulation prediction, are available for free. An optional 'Selene PLUS' subscription unlocks advanced features like weight graphs and unlimited history access. ### What are the benefits of Selene PLUS? Selene PLUS offers features such as weight graphs to track fluctuations alongside your cycle, multiple view layouts for detailed analysis (quarterly, half-yearly, yearly), and unlimited access to historical data up to 50 years. It also includes a 1-month free trial. ### How accurate are Selene's predictions? Selene provides automatic predictions for your next period and ovulation day based on your recorded data. However, the app notes that prediction results are for reference purposes only, and users should consult healthcare professionals for important decisions. ### Does Selene have ads? No, Selene is an ad-free application, allowing users to track their health data without interruptions. ### What devices does Selene support? Selene is currently supported on iPhone devices, allowing users to manage their health data on their Apple smartphones. ### How is my data protected in Selene? Selene prioritizes privacy by storing all data securely on your device and not sharing it with third parties. Passcode lock support is also noted as coming soon for enhanced security. ### How often is Selene updated? The latest version of Selene is 2.5.0, which was last updated on February 27, 2026. This indicates a commitment to ongoing development and improvements. ## Version history (last 5 releases) ### 2.5.0 — 2026-02-27 [New Features] • Cervical mucus tracking feature added • View cervical mucus on Calendar, Chart, and Cycle detail screens • Cervical mucus data sync with Health • Manual import of cervical mucus from Health [Improvements] • Auto-request Health permissions when enabling tracking items in Settings • UI performance improvements • Enhanced Dynamic Type font support [Bug Fixes] • General stability improvements ### 2.4.3 — 2026-02-13 [New Features] • App update history feature added • Choose week start day (Sunday/Monday) in Settings • Confirmation prompt for Health auto-import • Select specific data types when importing from Health • Swipe between input pages • Backspace button added to BBT & Weight keyboards [Improvements] • Health settings UI and messaging significantly improved • BBT onboarding screen redesigned • Unified input screen design • Weight input now free (chart display remains PLUS) [Bug Fixes] • Improved tab bar background transparency • Fixed abnormal cycle display handling • General stability improvements ### 2.4.2 — 2026-01-12 [New Features] Layout switcher menu added to Calendar & Chart headers Quarterly, Half-Yearly & Yearly views added (PLUS) Access 50 years of history for subscribers Weight tracking feature added (PLUS) [Improvements] • Optimized Settings screen layout • Improved Subscription screen design • Enhanced tracking settings UX [Bug Fixes] • Improved chart display stability ### 2.4.1 — 2026-01-07 Version 2.4.1 - Better, Smoother, More Responsive New: • Haptic feedback for input screens - feel the app respond to your touch! • Basal Body Temperature setup screen for easier configuration Fixed: • Chart detail panel now displays correctly when tapped We're constantly improving Selene to give you the best cycle tracking experience. Thank you for your support! ### 2.4.0 — 2026-01-02 Version 2.4.0 - What's New New Features Easier First-Time Setup - When you use the app for the first time, you can now set your period length and cycle length - Added a screen to enter your last period start date - Importing data from the Health app is now smoother and easier - You can choose what you want to track (like weight) during initial setup Better Health App Integration - You can now import all your past data from the Health app anytime you want - The app automatically syncs with the Health app every time you open it - Only imports data created by this app to prevent duplicates - More control over what the app can read from and write to the Health app Interface Improvements - Added a new banner to show you important notifications - Added a more user-friendly menu screen Fixed Issues - Made the initial setup screens work more reliably - Fixed an issue where the first day of the month wasn't showing on the calendar - Adjusted text position in the notes screen to make it easier to read - Fixed an error that sometimes occurred on the cycle display screen - Improved the weight input screen to make it easier to use - The Health data import screen now only appears when you turn on weight tracking Other Improvements - Made the app run more smoothly overall - Ovulation day now displays better on all screens - Improved various settings screens to make them easier to use ## Apps similar to Selene | App | Rating | Price | Category | | --- | --- | --- | --- | | [Natural Cycles Fertility App](https://appshunter.io/ios/app/natural-cycles-fertility-app/id765535549) | 4.8 (29,258) | Free | Health & Fitness | | [Premom Ovulation Tracker & BBT](https://appshunter.io/ios/app/premom-ovulation-tracker-and-bbt/id1279295922) | 4.8 (55,798) | Free | Health & Fitness | | [Femometer Fertility Tracker](https://appshunter.io/ios/app/femometer-fertility-tracker/id1269972832) | 4.9 (69,539) | Free | Health & Fitness | | [Clue Period & Cycle Tracker](https://appshunter.io/ios/app/clue-period-and-cycle-tracker/id657189652) | 4.8 (396,654) | Free | Health & Fitness | | [Moody Month: Hormone Tracker](https://appshunter.io/ios/app/moody-month-hormone-tracker/id1414905792) | 4.6 (879) | Free | Health & Fitness | | [Cycles: Period & Cycle Tracker](https://appshunter.io/ios/app/cycles-period-and-cycle-tracker/id577187307) | 4.4 (3,099) | Free | Health & Fitness | ## Related topics [selene](https://appshunter.io/ios/topics/selene) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*