# CycleFasting vs Diamond Period Tracker

The clearest difference is update cadence: CycleFasting at every 2 days against Diamond Period Tracker's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CycleFasting sells 3 in-app purchases, starting at $7.99 per month and Diamond Period Tracker sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

CycleFasting ships an update every 2 days, Diamond Period Tracker every 4 weeks. The most recent releases landed on September 22, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | CycleFasting | Diamond Period Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 weeks |
| Size | 25 MB | 11 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Zorana Raicic](https://appshunter.io/developer/1882648182) | [Elvin tansu Dogan](https://appshunter.io/developer/1893668578) |

## What reviewers say

### CycleFasting

[App page](https://appshunter.io/ios/app/cyclefasting/id6760101500)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $7.99 | per month |
| 6 Months | $39.99 | per 6 months |
| Yearly | $64.99 | per year |


### Diamond Period Tracker

[App page](https://appshunter.io/ios/app/diamond-period-tracker/id6765629321)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $69.99 | per year |


## Frequently asked questions

### Is CycleFasting free?

CycleFasting is free to download, with in-app purchases available.

### Is Diamond Period Tracker free?

Diamond Period Tracker is free to download, with in-app purchases available.

### Do CycleFasting or Diamond Period Tracker have ads?

Neither CycleFasting nor Diamond Period Tracker shows ads.

### Which is updated more often, CycleFasting or Diamond Period Tracker?

CycleFasting ships an update every 2 days, and Diamond Period Tracker every 4 weeks. Most recently, CycleFasting was updated on September 22, 2026 and Diamond Period Tracker on September 11, 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.*