# Math master vs iCosmos寂天雲

The clearest difference is rating: Math master at 4.0 against iCosmos寂天雲's 1.0. Math master also leads on ratings volume (28 vs 1). iCosmos寂天雲's advantage is update cadence (every 2 months vs every 5 months). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Math master holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: Math master has 28 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of Math master's written reviews are positive against 6% of iCosmos寂天雲's, so the app with the better star average is not the one people write more warmly about.

Math master ships an update every 5 months, iCosmos寂天雲 every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Math master | iCosmos寂天雲 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (28 ratings)](https://appshunter.io/ios/app/math-masterfor-grades-1-to-6/id1440355846/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/icosmos/id1544203592/reviews) |
| Number of ratings | **28** | 1 |
| Positive reviews | 0.0% of reviews | **6.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 12 MB | 41 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [zhao liu](https://appshunter.io/developer/1041229972) | [Soyong Corporation](https://appshunter.io/developer/339142397) |

## What reviewers say

### Math master

[App page](https://appshunter.io/ios/app/math-masterfor-grades-1-to-6/id1440355846)

This app provides primary school students with essential math practice to build foundational computing skills. It offers customizable tests for addition, subtraction, multiplication, and division, allowing children to track their progress and improve accuracy.

**Highlights:** Addition, subtraction, multiplication, division practice, Customizable question sets, In-app drawing and note-taking, Performance tracking (time, score), Progress monitoring, Suitable for grades 1-6

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

**In-app purchases:** none


### iCosmos寂天雲

[App page](https://appshunter.io/ios/app/icosmos/id1544203592)

This app enhances language learning by integrating with specific textbooks. It offers audiobook playback with customizable speeds and repeat functions, as well as interactive MeBook features like synchronized text and audio, pronunciation practice, and vocabulary management tools.

**Highlights:** Audiobook playback with QR code scanning, Synchronized text and audio (MeBook), Customizable playback speed and repetition, Pronunciation practice with microphone input, Vocabulary management and spaced repetition, Reading comprehension exercises, Chapter-based quizzes

**In-app purchases:** none


## Frequently asked questions

### Is Math master free?

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

### Is iCosmos寂天雲 free?

iCosmos寂天雲 is free to download, with no in-app purchases.

### Which has better reviews, Math master or iCosmos寂天雲?

Math master is rated higher. Math master averages 4.0 out of 5 from 28 ratings, while iCosmos寂天雲 averages 1.0 from 1 ratings.

### Do Math master or iCosmos寂天雲 have ads?

Neither Math master nor iCosmos寂天雲 shows ads.

### Which is updated more often, Math master or iCosmos寂天雲?

Math master ships an update every 5 months, and iCosmos寂天雲 every 2 months. Most recently, Math master was updated on November 2, 2026 and iCosmos寂天雲 on November 3, 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.*