# 閱讀悅Fun vs RainbowSky

The clearest difference is update cadence: RainbowSky at every 2 weeks against 閱讀悅Fun's every 2 months. RainbowSky also leads on device support (3 vs 1). 閱讀悅Fun's advantage is iOS requirement (6.1 vs 12.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

閱讀悅Fun ships an update every 2 months, RainbowSky every 2 weeks. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 閱讀悅Fun | RainbowSky |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 277 MB | 292 MB |
| Requires iOS | **6.1** | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hong Chi Association](https://appshunter.io/developer/645391618) | [Open Knowledge Association Ltd.](https://appshunter.io/developer/868011308) |

## What reviewers say

### 閱讀悅Fun

[App page](https://appshunter.io/ios/app/fun/id919014912)

**Features:** macOS Compatibility

**In-app purchases:** none


### RainbowSky

[App page](https://appshunter.io/ios/app/rainbowsky/id6771268020)

**In-app purchases:** none


## Frequently asked questions

### Is 閱讀悅Fun free?

閱讀悅Fun is free to download, with no in-app purchases.

### Is RainbowSky free?

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

### Do 閱讀悅Fun or RainbowSky have ads?

Neither 閱讀悅Fun nor RainbowSky shows ads.

### Which is updated more often, 閱讀悅Fun or RainbowSky?

閱讀悅Fun ships an update every 2 months, and RainbowSky every 2 weeks. Most recently, 閱讀悅Fun was updated on October 10, 2026 and RainbowSky on October 6, 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.*