# 온하이 vs Readi Ready

The clearest difference is update cadence: Readi Ready at every 3 days against 온하이's every 2 months. 온하이's advantage is iOS requirement (13.6 vs 16.4). 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.

온하이 ships an update every 2 months, Readi Ready every 3 days. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 온하이 | Readi Ready |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 16 MB | 166 MB |
| Requires iOS | **13.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LessonMonster](https://appshunter.io/developer/1755194432) | [Readi Labs](https://appshunter.io/developer/6811398120) |

## What reviewers say

### 온하이

[App page](https://appshunter.io/ios/app/id6504378301)

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

**In-app purchases:** none


### Readi Ready

[App page](https://appshunter.io/ios/app/readi-ready/id6811398028)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 온하이 free?

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

### Is Readi Ready free?

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

### Do 온하이 or Readi Ready have ads?

Neither 온하이 nor Readi Ready shows ads.

### Which is updated more often, 온하이 or Readi Ready?

온하이 ships an update every 2 months, and Readi Ready every 3 days. Most recently, 온하이 was updated on October 2, 2026 and Readi Ready on October 8, 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.*