Fertility Friend FF Tracker vs TempCurve BBT Chart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fertility Friend FF Tracker
This app helps women track their ovulation and fertile days with advanced charting tools. It provides personalized insights into your cycle, helping you understand your fertility signs and maximize your chances of conception. Millions of women trust it for accurate cycle analysis and pregnancy tracking.
- Ovulation detection
- Fertile window prediction
- BBT and cervical fluid tracking
- Period and symptom logging
- Interactive fertility charts
- TTC educational library
- Pregnancy monitoring
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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 and Oura (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.
TempCurve BBT Chart
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TempCurve is a simple, private iOS app for women trying to conceive (TTC) who want to track their basal body temperature (BBT) and confirm ovulation manually. Key features: - Log daily basal body temperature in Fahrenheit or Celsius - 3-over-6 rule algorithm to confirm biphasic temperature shifts and ovulation - Interactive temperature curve chart showing your last 10 records and Coverline - Physiological status dashboard showing confirmed ovulation date or logging guidance - History list grouped by month with swipe-to-delete action - Export BBT history to CSV or clear all data locally - Fully offline with no accounts, no ads, and no cloud data tracking TempCurve is designed for informational and general wellness purposes only. It is not intended to be used for contraception, medical advice, diagnosis, or treatment.
Screenshots
Verdict
The clearest difference is in-app purchases: TempCurve BBT Chart at none against Fertility Friend FF Tracker's 4. Fertility Friend FF Tracker's advantage is update cadence (weekly vs monthly). On price, ads, device support and iOS requirement 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. Fertility Friend FF Tracker sells 4 one-off in-app purchases. TempCurve BBT Chart asks for nothing beyond the download.
Fertility Friend FF Tracker ships an update weekly, TempCurve BBT Chart monthly. The most recent releases landed on October 26, 2026 and October 9, 2026 respectively.
| Parameter | Fertility Friend FF Tracker | TempCurve BBT Chart |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (7.4K ratings) — better | — |
| Positive reviews | 78.8% of reviews | — |
| Number of ratings | 7.4K — better | — |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 33 MB | 4 MB |
| Age rating | 17+ | 4+ |
| Developer | Tamtris Web Services Inc. | 拥军 刘 |
Bugs and requests
Fertility Friend FF Tracker
Reported bugs
4 issues- Unable to create account
- Randomly deleting custom data
- Inaccurate ovulation predictions
- Pregnancy data not transferring
Requested features
5 requests- Offline mode with data syncing
- Integration with Apple Health
- More affordable subscription options
- Improved community features
- Streamlined data entry process
TempCurve BBT Chart
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Fertility Friend FF Tracker
- 30 Days VIP Membership$10.99
- 90 Days VIP Membership$21.99
- 1 Year VIP - Special Rate$23.99
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- 1 Year VIP Membership$45.99
TempCurve BBT Chart
No in-app purchases
Questions
Is Fertility Friend FF Tracker free?
Is TempCurve BBT Chart free?
Do Fertility Friend FF Tracker or TempCurve BBT Chart have ads?
Which is updated more often, Fertility Friend FF Tracker or TempCurve BBT Chart?
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