# RainbowStar vs EdU LibMap

The clearest difference is in-app purchases: EdU LibMap at none against RainbowStar's 6. RainbowStar's advantage is update cadence (every 5 weeks vs every 3 months) and iOS requirement (12.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. RainbowStar sells 6 one-off in-app purchases. EdU LibMap asks for nothing beyond the download.

RainbowStar ships an update every 5 weeks, EdU LibMap every 3 months. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | RainbowStar | EdU LibMap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Size | 287 MB | 12 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Open Knowledge Association Ltd.](https://appshunter.io/developer/868011308) | [The Education University of Hong Kong](https://appshunter.io/developer/1130838504) |

## What reviewers say

### RainbowStar

[App page](https://appshunter.io/ios/app/rainbowstar/id1251256553)

**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 |


### EdU LibMap

[App page](https://appshunter.io/ios/app/edu-libmap/id1434267358)

**In-app purchases:** none


## Frequently asked questions

### Is RainbowStar free?

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

### Is EdU LibMap free?

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

### Do RainbowStar or EdU LibMap have ads?

Neither RainbowStar nor EdU LibMap shows ads.

### Which is updated more often, RainbowStar or EdU LibMap?

RainbowStar ships an update every 5 weeks, and EdU LibMap every 3 months. Most recently, RainbowStar was updated on September 24, 2026 and EdU LibMap on September 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.*