# EMM EDB vs RainbowSky

The clearest difference is update cadence: RainbowSky at every 2 weeks against EMM EDB's every 5 months. RainbowSky also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EMM EDB ships an update every 5 months, RainbowSky every 2 weeks. The most recent releases landed on October 21, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | EMM EDB | RainbowSky |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/emm-edb/id563107065/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 27.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 163 MB | 292 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [香港教育電視](https://appshunter.io/developer/563107068) | [Open Knowledge Association Ltd.](https://appshunter.io/developer/868011308) |

## What reviewers say

### EMM EDB

[App page](https://appshunter.io/ios/app/emm-edb/id563107065)

This app offers a rich collection of educational multimedia resources, including videos, animations, and picture books, designed to support learning for kindergarten, primary, and secondary students and teachers. Resources are aligned with the school curriculum and aim to enrich the learning experience and facilitate teaching activities.

**Highlights:** Theme-based short videos, Multi-ending micro movies, Animations and nursery rhymes, Picture books and sound tracks, Curriculum-aligned resources, Informational videos for parents and teachers

**Features:** macOS Compatibility

**In-app purchases:** none


### RainbowSky

[App page](https://appshunter.io/ios/app/rainbowsky/id6771268020)

**In-app purchases:** none


## Frequently asked questions

### Is EMM EDB free?

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

### Is RainbowSky free?

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

### Do EMM EDB or RainbowSky have ads?

Neither EMM EDB nor RainbowSky shows ads.

### Which is updated more often, EMM EDB or RainbowSky?

EMM EDB ships an update every 5 months, and RainbowSky every 2 weeks. Most recently, EMM EDB was updated on October 21, 2026 and RainbowSky on October 6, 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.*