# RainbowStar

> RainbowStar (iPhone/iPad app by Open Knowledge Association Limited.)

- Source: https://appshunter.io/ios/app/rainbowstar/id1251256553 (this page in markdown: same URL + `.md`)
- Developer: [Open Knowledge Association Limited](https://appshunter.io/developer/868011308)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 12.0 · 287 MB
- Languages: Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew, Indonesian and 15 more
- Released: 2017-06-23
- Data updated: 2026-07-04
- User reviews in markdown: https://appshunter.io/ios/app/rainbowstar/id1251256553/reviews.md

## What is RainbowStar?

Your e-books, your pedagogy. 
Cater your student's need.
RainbowStar lets you create your own e-Learning materials and hold a truly interactive and engaging e-lesson. E-books can be easily created and adjusted freely to suit your needs. Our interactive e-lesson equipped with functions which helps you to save time. Exercises can be auto-corrected, and the learning data are analyzed to let you know more about your students’ ability. And the most important is, it is fun!

Innovative e-Book Editor: Total Design Freedom
We offer 80+ comprehensive tool and 10000+ images for you to tailor-make your e-books. You can start with a free canvas or choose from our templates. With easy drag and drop you can customize anything. 

Cross-platform lesson: Interact with your students
Lesson can be held in a cross-platform environment. You can group your students and hold a competition, voting or discussion. We also provide page-sync, black-out screen and other functions that helps you manage your class. 

Instant Charts: Know your students well
All questions with pre-set answers are instantly corrected. Learning data are automatically collected and analyzed. You can easily find out the learning difficulties of your students.

Bookstore with editable e-books
Share your knowledge! Here we have a bookstore for you to share your materials in public, and you can read the e-books from the bookstore to get some inspiration, or even download and edit it to suit your needs.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 8個金幣 | $0.99 | one-time |
| 98個金幣 | $12.99 | one-time |
| 48個金幣 | $5.99 | 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 |



## Version history (last 5 releases)

### 2.8.44 — 2026-06-24

- Added automatic classroom grouping feature
- Added book rating functionality
- Disabled browser tools by default
- Resolved an issue where certain e-books would hang during printing
- Fixed an issue preventing teachers from assigning specific pages to students.
- Fixed bugs in other components.

### 2.8.43 — 2026-02-03

- Fixed an issue where students were unable to navigate to other pages after screen sharing ended.
- Fixed an issue where students could use the keyboard to navigate away from the teacher's screen when sharing the screen.

### 2.8.42 — 2026-01-23

- Added custom question feature to the AI assistant
- Added book sharing feature that allows student to rate the books by difficulty level
- Fixed issue where images couldn’t be deleted in the image selection question component
- Fixed issue in the image selection question component where, when using custom positioning, randomized answers only shuffled option labels but not the actual options
- Fixed printing issue where the timer component prevented further printing
- Fixed various other component functionality issues

### 2.8.40 — 2025-12-09

- Fixed an issue where content could disappear when editing popup note components
- Fixed an issue where teachers couldn't replay student e-pen answers during grading
- Fixed an issue where background images in some e-books failed to display
- Fixed an issue preventing users from re-viewing good work recordings
- Fixed an issue where content could disappear when editing popup note components
- Fixed functional errors in other components

### 2.8.36c — 2025-06-23

Minimum support updated to iOS 12

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## More apps by Open Knowledge Association Limited

- [RainbowOne](https://appshunter.io/ios/app/rainbowone/id1019429184)
- [Learning Chinese is Fun](https://appshunter.io/ios/app/learning-chinese-is-fun/id1187074030)
- [時事學中文](https://appshunter.io/ios/app/id1239712025)
- [中華文化讀本](https://appshunter.io/ios/app/id1509997615)
- [i世代親子實驗劇](https://appshunter.io/ios/app/i/id1537748452)

All apps by Open Knowledge Association Limited: https://appshunter.io/developer/868011308

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-04.*