Comparison

Fertility Friend FF Tracker vs Cyclisity TCOYF Cycle Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Ovulation detection
  • Fertile window prediction
  • BBT and cervical fluid tracking
  • Period and symptom logging
  • Interactive fertility charts
  • TTC educational library
  • Pregnancy monitoring
Read full description

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.

About

Cyclisity TCOYF Cycle Tracker

This app helps you track your menstrual cycles and fertility using the science-based symptothermal method. It guides you through charting your temperature, cervical fluid, and cervical position, applying established fertility awareness guidelines. Access educational resources and community support to confidently understand your body's natural rhythms.

Highlights
  • Symptothermal cycle tracking
  • Ovulation and period charting
  • Fertility Awareness Method (FAM) guidelines
  • In-app educational references
  • Community forums
  • Privacy-focused data ownership
Read full description

Official cycle & ovulation tracking app of Taking Charge of Your Fertility (TCOYF), co-founded by Toni Weschler, MPH. Carefully crafted by Toni Weschler, MPH - renowned Fertility Awareness Method (FAM) expert and author of the best-selling book Taking Charge of Your Fertility - alongside a passionate team of product designers, developers and physicians, the goal of Cyclisity is simple: be the world's best symptothermal method tracking app. Integrating seamlessly with the 2015 edition of Taking Charge of Your Fertility, Cyclisity follows TCOYF's science-based guidelines to help you confidently track your ovulatory cycles and practice FAM. Because a strong knowledge-base is crucial to practicing FAM correctly, in-app references can guide you back to key educational concepts from the book, ensuring you have ample support on your fertility awareness journey. PAID FEATURES: * Two tracks to choose from (Ovulation and Period Tracking or Pregnancy Achievement) * Ovulation and period tracking chart and calendar * Auto-detection of peak days and coverlines even for tricky thermal shifts (Runs all TCOYF rules automatically, so you can check your work) * Book references to TCOYF at helpful points throughout the app * Community forums rooted in learning and support * More features like charting secondary fertility signs and thermometer integrations coming soon! NO PREDICTIONS. Every woman's ovulatory cycle is unique. That’s why we don’t use predictive algorithms to guess at your fertile window. Instead, we help you chart your waking temperature, cervical fluid, and cervical position, and seamlessly apply the four FAM rules each day as taught in Taking Charge of Your Fertility. No shortcuts. No rhythm method. Just science, your observations, and the tools to help you read them with confidence. YOUR PRIVACY IS OUR COMMITMENT. At Cyclisity, we guarantee you remain the exclusive owner of your data. Rest assured, we will never sell your data, and will never forward it to a third party unless instructed by you. This is partly why we've chosen to self-fund and bootstrap Cyclisity, so we can always advocate for our customers in everything we do. PAYMENT. Please note Cyclisity is not a free app and access to all features requires recurring monthly payments of $2.99 USD or annual payments of $19.99 USD. We charge a subscription in order to maintain Cyclisity while avoiding any need for advertising or selling user data. 1-MONTH FREE TRIAL. Try Cyclisity for free for one month and subsequently with recurring monthly payments of $2.99 USD or annual payments of $19.99 USD. PRIVACY POLICY & TERMS OF SERVICE. www.cyclisity.com/privacy-policy www.cyclisity.com/terms-of-service WEBSITE. www.cyclisity.com SUPPORT. Contact us anytime at support@cyclisity.com or via the account page inside the app. DISCLAIMER. YOU MUST INTERPRET YOUR OWN CYCLES. Although Cyclisity is designed to help make charting your cycles seamless, we are not FDA approved as a medical device and do not provide any medical advice. You must interpret your own data when determining fertile days or non-fertile days.

Screenshots

Fertility Friend FF Tracker4 screens
Cyclisity TCOYF Cycle Tracker4 screens

Verdict

The call

The clearest difference is monetization model: Fertility Friend FF Tracker at freemium against Cyclisity TCOYF Cycle Tracker's subscription. Fertility Friend FF Tracker also leads on ratings volume (7.5K vs 125) and update cadence (weekly vs monthly). Cyclisity TCOYF Cycle Tracker's advantage is review sentiment (96% vs 79%). On price, rating, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fertility Friend FF Tracker sells 4 one-off in-app purchases and Cyclisity TCOYF Cycle Tracker sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Fertility Friend FF Tracker against 4.8 for Cyclisity TCOYF Cycle Tracker. That said, the two scores are not equally well evidenced: Fertility Friend FF Tracker has 7.5K ratings behind it against 125, so its average is the more settled of the two. Written reviews are what separate them: 79% of Fertility Friend FF Tracker's written reviews are positive against 96% of Cyclisity TCOYF Cycle Tracker's.

UpkeepUpdate frequency

Fertility Friend FF Tracker ships an update weekly, Cyclisity TCOYF Cycle Tracker monthly. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Fertility Friend FF Tracker versus Cyclisity TCOYF Cycle Tracker: the parameters behind the verdict, then further details
ParameterFertility Friend FF TrackerCyclisity TCOYF Cycle Tracker
PriceFreeFree
Rating4.8 (7.5K ratings)4.8 (125 ratings) — better
Positive reviews78.8% of reviews96.3% of reviews — better
Number of ratings7.5K — better125
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterSubscription
DevicesiPhone, iPad — betteriPhone
Requires iOS16.6 — better18
Further details — not scored
Size33 MB52 MB
Age rating17+17+
DeveloperTamtris Web Services Inc.TCOYF Applications LLC

Customer experience

Fertility Friend FF Tracker

All ratings7,442 ratings
Positive96.1%
Neutral1.6%
Negative2.3%
Written reviews386 reviews
Positive78.8%
Neutral7.0%
Negative14.2%

Cyclisity TCOYF Cycle Tracker

All ratings93 ratings
Positive94.6%
Neutral1.1%
Negative4.3%
Written reviews82 reviews
Positive96.3%
Neutral2.4%
Negative1.2%

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

Cyclisity TCOYF Cycle Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Fertility Friend FF Tracker

One-time4
  • 30 Days VIP Membership$10.99
  • 90 Days VIP Membership$21.99
  • 1 Year VIP - Special Rate$23.99
Show 1 more
  • 1 Year VIP Membership$45.99
2 purchases

Cyclisity TCOYF Cycle Tracker

Subscriptions2
  • Monthly plan1 Month trial$2.991 Month
  • Yearly plan1 Month trial$19.991 Year

Questions

Is Fertility Friend FF Tracker free?
Fertility Friend FF Tracker is free to download, with in-app purchases available.
Is Cyclisity TCOYF Cycle Tracker free?
Cyclisity TCOYF Cycle Tracker is free to download, with in-app purchases available.
Which has better reviews, Fertility Friend FF Tracker or Cyclisity TCOYF Cycle Tracker?
Cyclisity TCOYF Cycle Tracker is rated higher. Fertility Friend FF Tracker averages 4.8 out of 5 from 7.5K ratings, while Cyclisity TCOYF Cycle Tracker averages 4.8 from 125 ratings.
Do Fertility Friend FF Tracker or Cyclisity TCOYF Cycle Tracker have ads?
Neither Fertility Friend FF Tracker nor Cyclisity TCOYF Cycle Tracker shows ads.
Which is updated more often, Fertility Friend FF Tracker or Cyclisity TCOYF Cycle Tracker?
Fertility Friend FF Tracker ships an update weekly, and Cyclisity TCOYF Cycle Tracker monthly. Most recently, Fertility Friend FF Tracker was updated on November 6, 2026 and Cyclisity TCOYF Cycle Tracker on October 30, 2026.

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