# 彩虹单词 vs 单词日记

The clearest difference is ads: 彩虹单词 at none against 单词日记's shown. 彩虹单词 also leads on update cadence (every 2 months vs every 6 months). 单词日记's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 18.6). On price 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.

彩虹单词 ships an update every 2 months, 单词日记 every 6 months. The most recent releases landed on October 12, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 彩虹单词 | 单词日记 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 6 months |
| Size | 24 MB | 206 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rainbow Forest Co., Ltd](https://appshunter.io/developer/1739974336) | [Yangguang Ma](https://appshunter.io/developer/670518380) |

## What reviewers say

### 彩虹单词

[App page](https://appshunter.io/ios/app/id6502644844)

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

**In-app purchases:** none


### 单词日记

[App page](https://appshunter.io/ios/app/id6748201649)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 彩虹单词 free?

彩虹单词 is free to download, with no in-app purchases.

### Is 单词日记 free?

单词日记 is free to download, with no in-app purchases.

### Do 彩虹单词 or 单词日记 have ads?

单词日记 shows ads; 彩虹单词 does not.

### Which is updated more often, 彩虹单词 or 单词日记?

彩虹单词 ships an update every 2 months, and 单词日记 every 6 months. Most recently, 彩虹单词 was updated on October 12, 2026 and 单词日记 on October 17, 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.*