Tempdrop vs Fertility Friend FF Tracker Usage & Stats
The Tempdrop app is designed to complement the Tempdrop device - a personalized user-specific thermometer that captures minute temperature variations throughout the night to pinpoint the basal body temperature. Detected variations in temperature correlate with hormonal fluctuations throughout the menstrual cycle. When used with the Tempdrop device, this app can help users to pinpoint ovulation and effectively track and predict the varying phases of the cycle.
Disclaimer: The Tempdrop sensor and app are intended as complementary instruments to enhance your ability to monitor your fertility and share health details. The app and its wearable sensor, in themselves, are not, nor are they intended to be, a fertility monitor, a substitute for contraception, or a birth control method. We recognize the need of some to use the data and information provided to support ongoing health and menstrual cycle tracking, however, it is important to note that this should NOT be used as a substitute for an in-presence qualified professional, medical analysis, advice, guidance, or treatment. We strongly advise seeking a qualified Fertility Awareness instructor or other self-teaching resources to learn a symptothermal method and support your fertility journey.
The provided interpretations and prediction guidelines are not suitable for use with irregular cycles. Optimal performance is dependent on correct and consistent use. Individual usage, wearing, input, and circumstances can affect the data. The user is fully responsible for the individual data inputs.
The Tempdrop Sensor is approved for use in the USA, and is registered in the FDA database under registration number 3016099071. The device is classified as "Device, Fertility Diagnostic, Proceptive”.
A link to the terms of use - https://www.tempdrop.com/pages/tos
A link to the privacy policy - https://www.tempdrop.com/pages/privacy-policy
- Apple App Store
- Free
- Health & Fitness
Store Rank
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Track ovulation with confidence with the gold standard fertility charting app, trusted for over 25 years. Fertility Friend helps to accurately find your most fertile days, understand your ovulation pattern, and learn more about your unique cycle.
Join the millions of women who have used Fertility Friend while trying to conceive, including over 1 million who recorded positive pregnancy tests in the app.
Track your period and key fertility signs (BBT, cervical fluid, OPKs, symptoms). Fertility Friend will automatically create your chart, highlight your fertile window, and provide personalized insights, including when ovulation likely occurred and when to test for pregnancy.
Fertility Friend teaches you how to chart, what your signs mean, and gives you the confidence to never miss a fertile opportunity.
What’s FREE:
- We do not sell or share your data or display ads
- 30-day trial of premium features (No credit card, no auto-charge)
- Automatic ovulation detection
- Use Fertility Friend’s advanced (default) accurate ovulation detector or choose ovulation detection based on the Fertility Awareness Method (FAM)
- Interactive fertility chart with coverline and symptom display
- Color-coded fertility calendar: see your period, fertile days, ovulation and more at a glance
- Detailed and customizable data entry: period, BBT, OPK, CM, symptoms, meds, LH tests…
- Sync with Apple Health, Oura, and Fitbit/Pixel Watch (automatic import of temps, heart rate, sleep, and more)
- Graphical cycle progress bar/ticker display
- Daily data summary
- Period tracking
- Menstrual cycle statistics: cycle length, phase length, ovulation dates
- Extensive TTC educational library: videos, lessons, quizzes, games, articles
- Searchable gallery of 240,000+ shared cycles.
- View real life BBT charts filtered by keywords
- Sharing possibilities (optional)
- Dark Mode and custom color themes
- Companion access to FertilityFriend.com
What’s PREMIUM (Highlights):
- All Free features plus
- Advanced fertility insights and analysis
- More graphs & detailed interpretations
- Enhanced data display on chart and calendar
- Cycle comparison tools
- Pregnancy Monitor
- Pregnancy Tracker
- Charts “Like Mine” gallery search
- Stats display on Chart Gallery searches
- Pattern detection
- Private, supportive community
- Additional expert tools developed over decades
Fertility Friend offers unmatched experience, accuracy, and depth to help you understand your cycle with confidence.
Important: This app provides educational estimates only and must not be used to avoid pregnancy or schedule medical procedures. Always consult your healthcare provider for medical advice.
- Apple App Store
- Free
- Health & Fitness
Store Rank
- -
Tempdrop VS. 
Fertility Friend FF TrackerJanuary 14, 2026