# YBKK vs Rubtang

The clearest difference is update cadence: YBKK at every 3 months against Rubtang's every 7 months. Rubtang's advantage is 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.

YBKK ships an update every 3 months, Rubtang every 7 months. The most recent releases landed on September 27, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | YBKK | Rubtang |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Size | 25 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

### YBKK

[App page](https://appshunter.io/ios/app/ybkk/id1639041910)

**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 YBKK free?

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

### Is Rubtang free?

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

### Do YBKK or Rubtang have ads?

Neither YBKK nor Rubtang shows ads.

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

YBKK ships an update every 3 months, and Rubtang every 7 months. Most recently, YBKK was updated on September 27, 2026 and Rubtang on October 27, 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.*