# ClassIn vs Rainbow Chinese Puzzles

The clearest difference is in-app purchases: Rainbow Chinese Puzzles at none against ClassIn's 13. ClassIn's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ClassIn sells 13 one-off in-app purchases. Rainbow Chinese Puzzles asks for nothing beyond the download.

ClassIn ships an update every 11 days, Rainbow Chinese Puzzles weekly. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ClassIn | Rainbow Chinese Puzzles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (1K ratings)](https://appshunter.io/ios/app/classin/id1226361488/reviews)** | — |
| Number of ratings | **1K** | — |
| Positive reviews | 50.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 308 MB | 48 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EEO Education Ltd.](https://appshunter.io/developer/1158875965) | [Wenyi Cao](https://appshunter.io/developer/1822179097) |

## What reviewers say

### ClassIn

[App page](https://appshunter.io/ios/app/classin/id1226361488)

This integrated platform supports online and offline teaching with features like live classrooms, LMS, and personalized learning environments. It aims to empower educators and learners globally, fostering independent and self-disciplined lifelong learning.

**Highlights:** Online live classrooms, Offline smart classrooms, Learning Management System (LMS), Personal Learning Environment (PLE), Collaborative blackboard, Virtual experiments

**Features:** Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchase 1 additional lesson | $0.99 | one-time |
| Purchase 2 additional lesson | $1.99 | one-time |
| Purchase 4 additional lesson | $2.99 | one-time |
| Purchase 12 additional lesson | $9.99 | one-time |
| Purchase 14 additional lesson | $11.99 | one-time |
| Purchase 15 additional lesson | $12.99 | one-time |
| Purchase 16 additional lesson | $12.99 | one-time |
| Pro Edition | $14.99 | one-time |
| Purchase 18 additional lesson | $14.99 | one-time |
| Purchase 17 additional lesson | $14.99 | one-time |
| Purchase 19 additional lesson | $14.99 | one-time |
| Monthly Edition | $17.99 | one-time |
| Purchase 20 additional lesson | $17.99 | one-time |

**What reviewers like**

- 💡 Useful features for education
- 👍 Great for learning Chinese
- 🚀 Efficient for online classes
- 🤝 Good for teacher-student interaction

**What reviewers complain about**

- 🐛 Buggy and unstable
- 🔋 High battery consumption
- 🤔 Confusing user interface
- 🤷‍♀️ Lack of privacy for students

**Reported bugs**

- Frequent crashes and freezes
- Issues with file uploads and downloads
- Microphone and camera problems
- Incompatibility with certain devices

**Requested features**

- Add autosave feature
- Improve screen sharing capabilities
- Enhance mobile app compatibility
- Provide better language support


### Rainbow Chinese Puzzles

[App page](https://appshunter.io/ios/app/rainbow-chinese-puzzles/id6747648552)

**In-app purchases:** none


## Frequently asked questions

### Is ClassIn free?

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

### Is Rainbow Chinese Puzzles free?

Rainbow Chinese Puzzles is free to download, with no in-app purchases.

### Do ClassIn or Rainbow Chinese Puzzles have ads?

Neither ClassIn nor Rainbow Chinese Puzzles shows ads.

### Which is updated more often, ClassIn or Rainbow Chinese Puzzles?

ClassIn ships an update every 11 days, and Rainbow Chinese Puzzles weekly. Most recently, ClassIn was updated on November 2, 2026 and Rainbow Chinese Puzzles on October 25, 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.*