# 一按通 vs RainbowOne

The clearest difference is review sentiment: RainbowOne at 100% against 一按通's 50%. RainbowOne also leads on update cadence (every 2 months vs every 11 months). 一按通's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 6). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. RainbowOne sells 6 one-off in-app purchases. 一按通 asks for nothing beyond the download.

一按通 holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews complicate that: 50% of 一按通's written reviews are positive against 100% of RainbowOne's, so the app with the better star average is not the one people write more warmly about.

一按通 ships an update every 11 months, RainbowOne every 2 months. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 一按通 | RainbowOne |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id732804554/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/rainbowone/id1019429184/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 618 MB | 287 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAHK](https://appshunter.io/developer/732804557) | [Open Knowledge Association Ltd.](https://appshunter.io/developer/868011308) |

## What reviewers say

### 一按通

[App page](https://appshunter.io/ios/app/id732804554)

**Features:** macOS Compatibility

**In-app purchases:** none


### RainbowOne

[App page](https://appshunter.io/ios/app/rainbowone/id1019429184)

Create and deliver interactive e-learning materials with a powerful e-book editor. Engage students through cross-platform lessons, auto-corrected exercises, and instant learning data analysis. Share and discover educational content in a dedicated bookstore.

**Highlights:** Innovative e-book editor with 80+ tools, Cross-platform interactive lessons, Auto-corrected exercises, Instant learning data analysis, Bookstore for sharing and editing e-books, Class management tools

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 8個金幣 | $0.99 | one-time |
| 48個金幣 | $5.99 | one-time |
| 98個金幣 | $12.99 | one-time |
| 218個金幣 | $27.99 | one-time |
| 368個金幣 | $46.99 | one-time |
| 688個金幣 | $89.99 | one-time |


## Frequently asked questions

### Is 一按通 free?

一按通 is free to download, with no in-app purchases.

### Is RainbowOne free?

RainbowOne is free to download, with in-app purchases available.

### Which has better reviews, 一按通 or RainbowOne?

一按通 is rated higher. 一按通 averages 5.0 out of 5 from 1 ratings, while RainbowOne averages 4.0 from 2 ratings.

### Do 一按通 or RainbowOne have ads?

Neither 一按通 nor RainbowOne shows ads.

### Which is updated more often, 一按通 or RainbowOne?

一按通 ships an update every 11 months, and RainbowOne every 2 months. Most recently, 一按通 was updated on October 5, 2026 and RainbowOne 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.*