# UBIS Master(유비스마스터) vs OnTwins

The clearest difference is update cadence: OnTwins at daily against UBIS Master(유비스마스터)'s every 3 months. 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.

UBIS Master(유비스마스터) ships an update every 3 months, OnTwins daily. The most recent releases landed on September 17, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | UBIS Master(유비스마스터) | OnTwins |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Size | 27 MB | 346 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [JongHoon Park](https://appshunter.io/developer/1011123709) | [IGI KOREA Co.,Ltd.](https://appshunter.io/developer/1640433106) |

## What reviewers say

### UBIS Master(유비스마스터)

[App page](https://appshunter.io/ios/app/ubis-master/id1011123710)

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

**In-app purchases:** none


### OnTwins

[App page](https://appshunter.io/ios/app/ontwins/id6504219595)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UBIS Master(유비스마스터) free?

UBIS Master(유비스마스터) is free to download, with no in-app purchases.

### Is OnTwins free?

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

### Do UBIS Master(유비스마스터) or OnTwins have ads?

Neither UBIS Master(유비스마스터) nor OnTwins shows ads.

### Which is updated more often, UBIS Master(유비스마스터) or OnTwins?

UBIS Master(유비스마스터) ships an update every 3 months, and OnTwins daily. Most recently, UBIS Master(유비스마스터) was updated on September 17, 2026 and OnTwins on September 24, 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.*