# EviMoon vs Cyra

The clearest difference is in-app purchases: Cyra at none against EviMoon's 2. EviMoon's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. EviMoon sells 2 in-app purchases, starting at $11.99 per 6 months. Cyra asks for nothing beyond the download.

EviMoon ships an update every 2 weeks, Cyra every 2 months. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | EviMoon | Cyra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 45 MB | 41 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Islambek Abdykarim Uulu](https://appshunter.io/developer/1866532694) | [Faiz Rasool](https://appshunter.io/developer/1798142109) |

## What reviewers say

### EviMoon

[App page](https://appshunter.io/ios/app/evimoon/id6757385025)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EviMoon 6-Month Premium | $11.99 | per 6 months |
| EviMoon Premium Yearly | $22.99 | per year |


### Cyra

[App page](https://appshunter.io/ios/app/cyra-ai-period-tracker/id6761675549)

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

**In-app purchases:** none


## Frequently asked questions

### Is EviMoon free?

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

### Is Cyra free?

Cyra is free to download, with no in-app purchases.

### Do EviMoon or Cyra have ads?

Neither EviMoon nor Cyra shows ads.

### Which is updated more often, EviMoon or Cyra?

EviMoon ships an update every 2 weeks, and Cyra every 2 months. Most recently, EviMoon was updated on October 31, 2026 and Cyra 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.*