# ULA Period Tracker vs Diamond Period Tracker

The clearest difference is update cadence: Diamond Period Tracker at every 4 weeks against ULA Period Tracker's every 3 months. Diamond Period Tracker also leads on iOS requirement (16.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ULA Period Tracker sells 4 one-off in-app purchases 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.

ULA Period Tracker ships an update every 3 months, Diamond Period Tracker every 4 weeks. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ULA Period Tracker | Diamond Period Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Size | 10 MB | 11 MB |
| Requires iOS | 26.0 | **16.6** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Jeronimo Emiliano Ainchil Calahorra](https://appshunter.io/developer/1858267608) | [Elvin tansu Dogan](https://appshunter.io/developer/1893668578) |

## What reviewers say

### ULA Period Tracker

[App page](https://appshunter.io/ios/app/ula-period-tracker/id6756068195)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $3.99 | one-time |
| Huge Tip | $8.99 | one-time |


### 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 ULA Period Tracker free?

ULA Period Tracker 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 ULA Period Tracker or Diamond Period Tracker have ads?

Neither ULA Period Tracker nor Diamond Period Tracker shows ads.

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

ULA Period Tracker ships an update every 3 months, and Diamond Period Tracker every 4 weeks. Most recently, ULA Period Tracker was updated on October 28, 2026 and Diamond Period Tracker on November 5, 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.*