Fertility Friend FF Tracker vs Period
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.
Period
Track your menstrual cycle, log period dates, ovulation test results, and symptoms. Gain insights into fertility probability based on your cycle length. This app helps predict periods and monitor cycles.
- Menstrual cycle tracking
- Period logging
- Ovulation test logging
- Symptom tracking
- Fertility probability insights
- Cycle length comparison
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View where you are in your cycle with the Period Tracker app. You have the option to manually log your periods, ovulation test results and keep track of your menstrual cycle symptoms. Get insights into how the probability of peak fertility varies for women with the same cycle length as you. This app is designed for use by women who want to predict their periods, track their cycles or try for a baby. It should not be used as a method of contraception.
Screenshots
Verdict
The clearest difference is in-app purchases: Period at none against Fertility Friend FF Tracker's 4. Period also leads on iOS requirement (13.0 vs 16.6). Fertility Friend FF Tracker's advantage is review sentiment (79% vs 54%) and update cadence (weekly vs monthly). 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. Fertility Friend FF Tracker sells 4 one-off in-app purchases. Period asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Fertility Friend FF Tracker against 4.9 for Period. Both are backed by a comparable volume of ratings — 7.5K and 2.8K respectively. Written reviews are what separate them: 79% of Fertility Friend FF Tracker's written reviews are positive against 54% of Period's.
Fertility Friend FF Tracker ships an update weekly, Period monthly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Fertility Friend FF Tracker | Period |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (7.5K ratings) | 4.9 (2.8K ratings) — better |
| Positive reviews | 78.8% of reviews — better | 53.8% of reviews |
| Number of ratings | 7.5K — better | 2.8K |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 56 MB |
| Age rating | 17+ | 12+ |
| Developer | Tamtris Web Services Inc. | SPD Development Company Ltd |
Customer experience
Fertility Friend FF Tracker
Period
User reviews
Fertility Friend FF Tracker
From 7.5K App Store ratingsWhat we love
- 🚀 Accurate predictions
- 💡 Comprehensive tracking features
- 👍 Helpful educational resources
- 🚀 Detailed data analysis
- 🚀 Customizable symptom tracking
Room to improve
- 🐛 Frequent app crashes
- 💰 Expensive premium features
- 🔒 Privacy concerns
- 🕰️ Outdated user interface
- 🐛 Inconsistent data syncing
Period
From 2.8K App Store ratingsWhat we love
- 👍 Accurate tracking
- 🚀 Easy to use
- 💡 Helpful for fertility tracking
Room to improve
- 🐛 Notifications not working as expected
- 🐛 Data loss after updates
- 🐛 Broken links in the app
- 💡 No option to log basal body temperature
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
Period
Reported bugs
3 issues- Dates and data getting changed after updates
- Calendar not populating after updates
- Whole calendar getting erased after updates
Requested features
2 requests- Add option to log basal body temperature
- Improve notification customization
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
Period
No in-app purchases
Questions
Is Fertility Friend FF Tracker free?
Is Period free?
Which has better reviews, Fertility Friend FF Tracker or Period?
Do Fertility Friend FF Tracker or Period have ads?
Which is updated more often, Fertility Friend FF Tracker or Period?
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