# CHIN2 vs Rubtang

The clearest difference is update cadence: Rubtang at every 7 months against CHIN2's every 24 months. Rubtang also leads on iOS requirement (13.0 vs 15.0). 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.

CHIN2 ships an update every 24 months, Rubtang every 7 months. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | CHIN2 | Rubtang |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 7 months** |
| Size | 31 MB | 33 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [business solution soft co., ltd.](https://appshunter.io/developer/1513169224) | [Pimtida Promaut](https://appshunter.io/developer/1594150672) |

## What reviewers say

### CHIN2

[App page](https://appshunter.io/ios/app/chin2/id1645043546)

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

**In-app purchases:** none


### Rubtang

[App page](https://appshunter.io/ios/app/rubtang/id6479974666)

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

**In-app purchases:** none


## Frequently asked questions

### Is CHIN2 free?

CHIN2 is free to download, with no in-app purchases.

### Is Rubtang free?

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

### Do CHIN2 or Rubtang have ads?

Neither CHIN2 nor Rubtang shows ads.

### Which is updated more often, CHIN2 or Rubtang?

CHIN2 ships an update every 24 months, and Rubtang every 7 months. Most recently, CHIN2 was updated on October 20, 2026 and Rubtang on October 10, 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.*