# UDリーダー vs いろであそぼ

The clearest difference is update cadence: いろであそぼ at weekly against UDリーダー's every 3 weeks. UDリーダー's advantage is iOS requirement (15.0 vs 18.0). 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.

UDリーダー ships an update every 3 weeks, いろであそぼ weekly. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | UDリーダー | いろであそぼ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 9 MB | 1 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [kazuhito ujima](https://appshunter.io/developer/1440096648) | [YONONAKA LLC](https://appshunter.io/developer/6779645473) |

## What reviewers say

### UDリーダー

[App page](https://appshunter.io/ios/app/ud/id1637356914)

**Features:** macOS Compatibility

**In-app purchases:** none


### いろであそぼ

[App page](https://appshunter.io/ios/app/id6800370337)

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

**In-app purchases:** none


## Frequently asked questions

### Is UDリーダー free?

UDリーダー is free to download, with no in-app purchases.

### Is いろであそぼ free?

いろであそぼ is free to download, with no in-app purchases.

### Do UDリーダー or いろであそぼ have ads?

Neither UDリーダー nor いろであそぼ shows ads.

### Which is updated more often, UDリーダー or いろであそぼ?

UDリーダー ships an update every 3 weeks, and いろであそぼ weekly. Most recently, UDリーダー was updated on October 14, 2026 and いろであそぼ on October 10, 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.*