# Cyclisity TCOYF Cycle Tracker vs The Vow Method

The clearest difference is in-app purchases: The Vow Method at none against Cyclisity TCOYF Cycle Tracker's 2. The Vow Method also leads on iOS requirement (15.0 vs 18). Cyclisity TCOYF Cycle Tracker's advantage is update cadence (monthly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Cyclisity TCOYF Cycle Tracker sells 2 in-app purchases, starting at $2.99 per month. The Vow Method asks for nothing beyond the download.

Cyclisity TCOYF Cycle Tracker ships an update monthly, The Vow Method every 3 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Cyclisity TCOYF Cycle Tracker | The Vow Method |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (125 ratings)](https://appshunter.io/ios/app/cyclisity-tcoyf-cycle-tracker/id6740706785/reviews)** | — |
| Number of ratings | **125** | — |
| Positive reviews | 96.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Subscription | — |
| Size | 52 MB | 135 MB |
| Requires iOS | 18 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [TCOYF Applications LLC](https://appshunter.io/developer/1755272435) | [Christy Cousino](https://appshunter.io/developer/6791092667) |

## What reviewers say

### Cyclisity TCOYF Cycle Tracker

[App page](https://appshunter.io/ios/app/cyclisity-tcoyf-cycle-tracker/id6740706785)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $2.99 | per month |
| Yearly plan | $19.99 | per year |


### The Vow Method

[App page](https://appshunter.io/ios/app/the-vow-method/id6791092665)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cyclisity TCOYF Cycle Tracker free?

Cyclisity TCOYF Cycle Tracker is free to download, with in-app purchases available.

### Is The Vow Method free?

The Vow Method is free to download, with no in-app purchases.

### Do Cyclisity TCOYF Cycle Tracker or The Vow Method have ads?

Neither Cyclisity TCOYF Cycle Tracker nor The Vow Method shows ads.

### Which is updated more often, Cyclisity TCOYF Cycle Tracker or The Vow Method?

Cyclisity TCOYF Cycle Tracker ships an update monthly, and The Vow Method every 3 months. Most recently, Cyclisity TCOYF Cycle Tracker was updated on October 30, 2026 and The Vow Method on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*