# KAT vs Afterstone

The clearest difference is in-app purchases: KAT at none against Afterstone's 1. Afterstone's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Afterstone sells 1 one-off in-app purchase. KAT asks for nothing beyond the download.

KAT ships an update every 2 days, Afterstone daily. The most recent releases landed on October 31, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | KAT | Afterstone |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | **Daily** |
| Size | 0 MB | 124 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ozcan Demir](https://appshunter.io/developer/6810422687) | [Solvira Technology Solutions Inc.](https://appshunter.io/developer/1582830995) |

## What reviewers say

### KAT

[App page](https://appshunter.io/ios/app/kat-bir-kat-daha/id6810422685)

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

**In-app purchases:** none


### Afterstone

[App page](https://appshunter.io/ios/app/afterstone/id6820204015)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game | $3.99 | one-time |


## Frequently asked questions

### Is KAT free?

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

### Is Afterstone free?

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

### Do KAT or Afterstone have ads?

Neither KAT nor Afterstone shows ads.

### Which is updated more often, KAT or Afterstone?

KAT ships an update every 2 days, and Afterstone daily. Most recently, KAT was updated on October 31, 2026 and Afterstone 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.*