# KOR Studio vs BellyMystery

The clearest difference is in-app purchases: KOR Studio at none against BellyMystery's 1. BellyMystery's advantage is update cadence (every 5 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BellyMystery sells 1 one-off in-app purchase. KOR Studio asks for nothing beyond the download.

KOR Studio ships an update every 6 months, BellyMystery every 5 days. The most recent releases landed on September 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | KOR Studio | BellyMystery |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 days** |
| Size | 64 MB | 40 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [KOR Studio](https://appshunter.io/developer/1831194945) | [Ola Halvorsen](https://appshunter.io/developer/759327887) |

## What reviewers say

### KOR Studio

[App page](https://appshunter.io/ios/app/kor-studio/id6749565155)

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

**In-app purchases:** none


### BellyMystery

[App page](https://appshunter.io/ios/app/bellymystery/id6796150427)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English | $12.99 | one-time |


## Frequently asked questions

### Is KOR Studio free?

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

### Is BellyMystery free?

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

### Do KOR Studio or BellyMystery have ads?

Neither KOR Studio nor BellyMystery shows ads.

### Which is updated more often, KOR Studio or BellyMystery?

KOR Studio ships an update every 6 months, and BellyMystery every 5 days. Most recently, KOR Studio was updated on September 26, 2026 and BellyMystery on October 29, 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.*