# Acro vs The KOS

The clearest difference is update cadence: Acro at monthly against The KOS's every 30 months. 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.

Acro ships an update monthly, The KOS every 30 months. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Acro | The KOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 30 months |
| Size | 37 MB | 58 MB |
| Requires iOS | 13.0 | **12** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Reon Tech ehf.](https://appshunter.io/developer/632801784) | [Unlatch](https://appshunter.io/developer/1488436624) |

## What reviewers say

### Acro

[App page](https://appshunter.io/ios/app/acro/id1603827612)

**Features:** macOS Compatibility

**In-app purchases:** none


### The KOS

[App page](https://appshunter.io/ios/app/the-kos/id6463802165)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Acro free?

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

### Is The KOS free?

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

### Do Acro or The KOS have ads?

Neither Acro nor The KOS shows ads.

### Which is updated more often, Acro or The KOS?

Acro ships an update monthly, and The KOS every 30 months. Most recently, Acro was updated on October 10, 2026 and The KOS on October 3, 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.*