# ooin vs Arirang

The clearest difference is ads: ooin at none against Arirang's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. ooin sells 2 in-app purchases, starting at $3.99 per month and Arirang sells 8 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

ooin ships an update every 9 days, Arirang every 6 days. The most recent releases landed on September 20, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | ooin | Arirang |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 6 days** |
| Size | 28 MB | 130 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [heyvia](https://appshunter.io/developer/1894993366) | [HyperBabel Co., Ltd.](https://appshunter.io/developer/1893564670) |

## What reviewers say

### ooin

[App page](https://appshunter.io/ios/app/ooin/id6762748155)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ooin Premium Monthly | $3.99 | per month |
| ooin Premium Yearly | $34.99 | per year |


### Arirang

[App page](https://appshunter.io/ios/app/arirang/id6772873717)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arirang VIP (Monthly) | $24.99 | per month |
| Arirang VIP (Yearly) | $189.99 | per year |
| 100 Coins | $0.99 | one-time |
| 550 Coins (+10%) | $4.99 | one-time |
| 1,200 Coins (+20%) | $9.99 | one-time |
| 2,560 Coins (+28%) | $19.99 | one-time |
| 6,500 Coins (+30%) | $49.99 | one-time |
| 14,000 Coins (+40%) | $99.99 | one-time |


## Frequently asked questions

### Is ooin free?

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

### Is Arirang free?

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

### Do ooin or Arirang have ads?

Arirang shows ads; ooin does not.

### Which is updated more often, ooin or Arirang?

ooin ships an update every 9 days, and Arirang every 6 days. Most recently, ooin was updated on September 20, 2026 and Arirang on September 14, 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.*