# Oreve vs Kairn.

The clearest difference is update cadence: Kairn. at every 4 days against Oreve's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Oreve ships an update fortnightly, Kairn. every 4 days. The most recent releases landed on November 8, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Oreve | Kairn. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Size | 72 MB | 39 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Obornes](https://appshunter.io/developer/1739602922) | [Rubens Apprin](https://appshunter.io/developer/1602010293) |

## What reviewers say

### Oreve

[App page](https://appshunter.io/ios/app/oreve/id6480924865)

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

**In-app purchases:** none


### Kairn.

[App page](https://appshunter.io/ios/app/kairn/id6796336712)

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

**In-app purchases:** none


## Frequently asked questions

### Is Oreve free?

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

### Is Kairn. free?

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

### Do Oreve or Kairn. have ads?

Neither Oreve nor Kairn. shows ads.

### Which is updated more often, Oreve or Kairn.?

Oreve ships an update fortnightly, and Kairn. every 4 days. Most recently, Oreve was updated on November 8, 2026 and Kairn. on November 13, 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.*