# RainbowOne vs Math Pair

The clearest difference is in-app purchases: Math Pair at none against RainbowOne's 6. Math Pair also leads on update cadence (every 6 days vs every 2 months). RainbowOne's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.1). On price and device support there is nothing between them.

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

RainbowOne ships an update every 2 months, Math Pair every 6 days. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | RainbowOne | Math Pair |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/rainbowone/id1019429184/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 287 MB | 41 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Open Knowledge Association Ltd.](https://appshunter.io/developer/868011308) | [Hasan OZDEMIR](https://appshunter.io/developer/1884134513) |

## What reviewers say

### 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 |


### Math Pair

[App page](https://appshunter.io/ios/app/math-pair-memory-card-game/id6761003635)

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

**In-app purchases:** none


## Frequently asked questions

### Is RainbowOne free?

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

### Is Math Pair free?

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

### Do RainbowOne or Math Pair have ads?

Math Pair shows ads; RainbowOne does not.

### Which is updated more often, RainbowOne or Math Pair?

RainbowOne ships an update every 2 months, and Math Pair every 6 days. Most recently, RainbowOne was updated on October 10, 2026 and Math Pair on October 7, 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.*