# 彩虹单词 vs ImmersWords

The clearest difference is update cadence: ImmersWords at every 4 days against 彩虹单词's every 2 months. ImmersWords also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.6). 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.

彩虹单词 ships an update every 2 months, ImmersWords every 4 days. The most recent releases landed on September 26, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 彩虹单词 | ImmersWords |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 24 MB | 52 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rainbow Forest Co., Ltd](https://appshunter.io/developer/1739974336) | [希胜 林](https://appshunter.io/developer/1878780060) |

## 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


### ImmersWords

[App page](https://appshunter.io/ios/app/immerswords/id6760580132)

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

**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 ImmersWords free?

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

### Do 彩虹单词 or ImmersWords have ads?

Neither 彩虹单词 nor ImmersWords shows ads.

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

彩虹单词 ships an update every 2 months, and ImmersWords every 4 days. Most recently, 彩虹单词 was updated on September 26, 2026 and ImmersWords on September 22, 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.*