# Yukon vs Perim

The clearest difference is in-app purchases: Yukon at none against Perim's 3. Yukon also leads on iOS requirement (11.0 vs 17.6). Perim's advantage is update cadence (every 5 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Perim sells 3 in-app purchases, starting at $9.99 per 7 days. Yukon asks for nothing beyond the download.

Yukon ships an update every 3 months, Perim every 5 weeks. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Yukon | Perim |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 23 MB | 59 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Geca srl](https://appshunter.io/developer/1041949996) | [GOKTUG CETIN](https://appshunter.io/developer/1792437913) |

## What reviewers say

### Yukon

[App page](https://appshunter.io/ios/app/yukon/id1492292550)

**In-app purchases:** none


### Perim

[App page](https://appshunter.io/ios/app/perim-perimenopause-tracker/id6768767994)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access Pro | $9.99 | per 7 days |
| Perim Pro Yearly | $49.99 | per year |
| Perim Pro Yearly Subscription | $49.99 | per year |


## Frequently asked questions

### Is Yukon free?

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

### Is Perim free?

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

### Do Yukon or Perim have ads?

Neither Yukon nor Perim shows ads.

### Which is updated more often, Yukon or Perim?

Yukon ships an update every 3 months, and Perim every 5 weeks. Most recently, Yukon was updated on October 3, 2026 and Perim on October 16, 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.*