# Cyclisity TCOYF Cycle Tracker — Fertility, Ovulation & Period

> Symptothermal fertility and cycle tracking app based on Taking Charge of Your Fertility. (iPhone/iPad app by TCOYF Applications LLC.)

- Source: https://appshunter.io/ios/app/cyclisity-tcoyf-cycle-tracker/id6740706785 (this page in markdown: same URL + `.md`)
- Developer: [TCOYF Applications LLC](https://appshunter.io/developer/1755272435)
- Category: Health & Fitness, Education
- Price: Free with in-app purchases
- Rating: 4.80/5 from 101 App Store ratings · 46 written reviews indexed
- Age rating: 17+
- Requires: iOS 18 · 52 MB
- Languages: English
- Released: 2025-10-28
- Data updated: 2026-09-04
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/cyclisity-tcoyf-cycle-tracker/id6740706785/reviews.md

## What is Cyclisity TCOYF Cycle Tracker?

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.

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly plan | $2.99 | per month |
| Yearly plan | $19.99 | per year |


## Recent user reviews (10 of 46)

All indexed reviews: https://appshunter.io/ios/app/cyclisity-tcoyf-cycle-tracker/id6740706785/reviews.md

### 4/5 — I LOVE THIS APP!

*2026-04-28*

It has been an amazing journey learning about FAM, and cycle tracking. One tiny detail I wish they could add to make it even better: I wish the backups get stored as actual charts, not spreadsheets. At the moment, i can view all my cycles in one seamless chart, and when I check the backups, it all is stored as a spreadsheet (even multiple cycles) which can be a bit confusing.
Perhaps some prefer the seamless charting in the app, however I think it would be nice to have the option to separate the charts for the cycles when they start on day 1. At least for me, helps me differentiate the cycles better. Same with the back ups. The option to separate the cycles and be actual charts makes it easier to understand.

**Developer response:** Hi there, thank you for your review and feedback! Yes we agree that it would be nice to store your charts as PDFs and so in the future we will be coming out with an export to PDF option for each cycle. In the meantime, if you compress your chart so you can see everything regarding your cycle on your screen and take a screenshot and then email it to yourself, that should work for now until we get this new feature up and running. Thank you for your patience and support as we make Cyclisity better!

### 5/5 — Love it!

*2026-03-31*

I’ve been using the app since its launch (used their previous app before) and have been loving it. It’s easy to use and easy to understand the data through the calendar, diary and charts. Their support team is so helpful and quick to assist. They’re receptive to feedback and made updates to make it even better. It now has option to track custom items with your emoji of choice. Happy to have purchased the yearly subscription. I 100% recommend this app!

**Developer response:** Thank you so much for your kind words! We absolutely want to receive feedback from all our customers and will continue to work hard to improve Cyclisity with that feedback and make TCOYF more accessible to all. Thank you so much!

### 5/5 — Easy cycle tracking

*2026-03-29*

I’m so glad the creators of OvaGraph created a new app so I didn’t have to switch! I tried a few other free apps while waiting for this to be ready, and I didn’t like any. Yes this costs a little money, but remember the effort it took a team to build and continue supporting this app! It’s easy to use and has more features than I ever look into, but it’s so helpful for tracking my cycle. The support team is also very responsive and friendly if you have questions. :) Highly recommend for every woman.

**Developer response:** Thank you so much for your kind review! It means so much to us that you are supportive of the work we've done and are understanding that the only way we can fund the app is to charge a small subscription because we will never sell anyone's data or show ads. It's users like you that make this endeavor worthwhile!

### 5/5 — Love this app!

*2026-03-10*

I love the Cyclisity app! It’s easy to use and to understand. I had to transfer data from another app and customer support was quick to respond and super helpful in making the transfer easy. The app along with the book, Taking Charge of Your Fertility, really helped me to better understand my cycle. 10/10 recommend this app!

**Developer response:** Thank you so much for your kind review! When designing Cyclisity our main goals were ease of use and ease of understanding, along with being the best possible companion to Taking Charge of Your Fertility that we could be. We are so thrilled you are finding Cyclisity helpful!

### 5/5 — Love this app!

*2026-03-07*

Absolutely loved TCOYF. The information in the book helped me never have to use birth control. I prevented pregnancy for two years with the help of the info and the app. When I started trying to get pregnant, Cyclisity helped with tracking so much, and we were able to conceive! It helps me feel knowledgeable, healthy, and empowered. Definitely recommend!

**Developer response:** Amazing, we are so happy you've found TCOYF and Cyclisity helpful! We will continue working to make Cyclisity better and more connected to the TCOYF knowledge-base! :)

### 5/5 — Accurate, Detailed, and Reliable

*2026-03-02*

I’ve recently started tracking my cycle more intentionally, and this app has been incredible. I’ve tried several others, but this one stands out because of how detailed and accurate it is. I especially love the features like the cover line and luteal phase tracking they give me a much clearer picture of what’s actually happening with my cycle.

After using it consistently for a few months, I’ve been able to accurately track ovulation and predict my period with confidence. The insights and data it provides make me feel informed and in control of my health.

Highly recommend for anyone serious about understanding their cycle on a deeper level!

**Developer response:** We are so glad you've found Cyclisity helpful! Thank you for giving us a chance, we will continue to work hard to make Cyclisity more helpful to FAM practitioners everywhere!

### 5/5 — So helpful!

*2026-03-02*

I love this app! The companion book (Taking Charge of Your Fertility) was very helpful in helping me actually understand my cycle; it also didn’t take long to get through. I’m SO glad this app exists so I don’t have to track everything on paper. I feel way more in tune with my body and love how easy the app is to use. It also has a really nice, clean interface.

**Developer response:** Thank you so much for your very kind review! We are so happy we can continue the Taking Charge of Your Fertility legacy, and we will keep working to improve Cyclisity and make it better suited to the needs of FAM practitioners!

### 5/5 — Great upgrade!

*2026-03-01*

I’ve been using TCOYF methodology and resources for 15 years. This upgrade, even with improvements coming, is exactly perfect for finding peak day and tracking temps, etc. I LOVE how it has reference to the chapters in the book that describe what each app tab involves. That in itself is gold! Excited about the future upgrades, but honestly, if you’re doing the TCOYF method, you do the work needed to understand your own cycle, and the app compliments and records exactly what you need for that. If you’re looking for a “passive” period tracking, this IS NOT the app/method for you.

**Developer response:** Thank you for your kind review! We promise more improvements are coming to make Cyclisity mesh even better with TCOYF and the symptothermal method! We appreciate your support!

### 5/5 — So helpful!!

*2026-01-22*

I keep trying to leave a review and it weirdly wasn’t letting me, had to keep trying because I love this app so much. It’s so informative and I love that it goes hand in hand with the book you can read as well! It’s the first non stress fertility app I’ve found.

**Developer response:** Thank you so much for your kind words! We will keep doing our best to improve Cyclisity over time and make it even more connected to Taking Charge of Your Fertility!

### 3/5 — Good tracker but app freezes daily

*2026-01-12, version 1.1.1*

I like the functionality of the app and the prompts to track the different fertility signs.  However, I can’t ever switch between the different screens in the app.  Have to close out every time and re open to see a different screen because the app freezes up.

## Frequently asked questions about Cyclisity TCOYF Cycle Tracker

### What does the Cyclisity TCOYF Cycle Tracker app do?

This app is designed for tracking menstrual cycles and fertility using the symptothermal method, based on the guidelines from 'Taking Charge of Your Fertility'. It helps users chart their waking temperature, cervical fluid, and cervical position to understand their ovulatory cycles and practice Fertility Awareness Method (FAM) with confidence.

### What are the key features of this app?

Key features include ovulation and period tracking charts and calendars, auto-detection of peak days and coverlines based on TCOYF rules, and in-app references to educational concepts from the 'Taking Charge of Your Fertility' book. It also offers community forums for learning and support.

### How much does Cyclisity TCOYF Cycle Tracker cost?

This app is not free and requires a recurring subscription. Users can choose between monthly payments of $2.99 USD or annual payments of $19.99 USD. A 1-month free trial is available.

### What devices is Cyclisity TCOYF Cycle Tracker compatible with?

The provided description does not specify exact device compatibility (e.g., iOS or Android versions). However, it is a mobile application, implying it is designed for smartphones and tablets.

### Who is the target audience for this app?

The app is intended for individuals who want to gain a deeper understanding of their reproductive health by tracking their cycles and fertility. It is particularly suited for those interested in the science-based Fertility Awareness Method (FAM) and the principles outlined in 'Taking Charge of Your Fertility'.

## Version history (last 5 releases)

### 2.0.2 — 2026-05-07

Fixed some small bugs with the Chart UI and improved data import via CSV.

### 2.0.1 — 2026-03-26

Exciting news! You are now able to add custom emojis to the bottom of your Cyclisity chart, allowing you to visually track things like cyclical and secondary fertility signs, herbs, vitamins, supplements, exercise, mood, and events. Happy charting!

### 1.3 — 2026-02-26

Exciting news! We’ve added a new “Walk Me Through My Cycle” feature in the Chart. Tap any day to see how FAM rules and calculations were applied to your data.
We’ve also improved performance for users with larger data sets and fixed a few minor UI issues.

### 1.2 — 2026-01-21

We’ve made some improvements to the Chart and also added support for importing data from other fertility tracking services. We’ve also addressed some iCloud issues reported by users.

### 1.1.1 — 2025-12-04

Fixed an issue impacting smaller iOS devices.

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## Related topics

[cyclisity](https://appshunter.io/ios/topics/cyclisity) · [cyclisity tcoyf cycle tracker](https://appshunter.io/ios/topics/cyclisity-tcoyf-cycle-tracker) · [fertility awareness](https://appshunter.io/ios/topics/fertility-awareness) · [fertility awareness method](https://appshunter.io/ios/topics/fertility-awareness-method)

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*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 2026-09-04.*