# Katamuki Checker vs This one

The clearest difference is price: This one at Free against Katamuki Checker's $0.49. This one also leads on iOS requirement (12.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

This one is free to download; Katamuki Checker costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

Katamuki Checker ships an update every 18 months, This one every 20 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Katamuki Checker | This one |
| --- | --- | --- |
| Price | $0.49 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 18 months** | Every 20 months |
| Size | 6 MB | 15 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [yuuki iwamoto](https://appshunter.io/developer/1039662444) | [ALLIED SYSTEM CO.,LTD.](https://appshunter.io/developer/1077613622) |

## What reviewers say

### Katamuki Checker

[App page](https://appshunter.io/ios/app/katamuki-checker/id1234081701)

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

**In-app purchases:** none


### This one

[App page](https://appshunter.io/ios/app/this-one/id1523322284)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Katamuki Checker free?

Katamuki Checker costs $0.49, with no in-app purchases.

### Is This one free?

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

### Do Katamuki Checker or This one have ads?

Neither Katamuki Checker nor This one shows ads.

### Which is updated more often, Katamuki Checker or This one?

Katamuki Checker ships an update every 18 months, and This one every 20 months. Most recently, Katamuki Checker was updated on October 29, 2026 and This one on October 25, 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.*