# Math GrandMaster vs 黑白无双

The clearest difference is ads: 黑白无双 at none against Math GrandMaster's shown. 黑白无双 also leads on rating (5.0 vs 4.8) and monetization model (free vs ad-supported). Math GrandMaster's advantage is review sentiment (100% vs 75%). On price, ratings volume, 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.

黑白无双 holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews complicate that: 100% of Math GrandMaster's written reviews are positive against 75% of 黑白无双's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Math GrandMaster | 黑白无双 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4 ratings)](https://appshunter.io/ios/app/math-grandmaster/id1436944154/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/3d/id1519982732/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | — |
| Monetization | Ad-supported | **Free** |
| Size | 60 MB | 71 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [广才 杜](https://appshunter.io/developer/1225078960) | [继涛 张](https://appshunter.io/developer/1693356822) |

## What reviewers say

### Math GrandMaster

[App page](https://appshunter.io/ios/app/math-grandmaster/id1436944154)

Engage your mind with a math puzzle game designed to sharpen your mental arithmetic and logical thinking skills. Progress through increasingly complex levels, suitable for both children and adults, to enhance memory and analytical abilities.

**Highlights:** Mental arithmetic practice, Logical thinking development, Progressive difficulty levels, Abstract thinking enhancement, Memory and analysis improvement, IQ development

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

**In-app purchases:** none


### 黑白无双

[App page](https://appshunter.io/ios/app/3d/id1519982732)

Engage in a unique 3D puzzle challenge where flipping one tile inverts the color of itself and adjacent tiles in 2D and across layers. The goal is to eliminate all black tiles to achieve victory. This brain-teasing game offers a fresh take on puzzle mechanics.

**Highlights:** 3D tile flipping mechanics, Color inversion gameplay, Layered puzzle challenges, Eliminate all black tiles, Brain-teasing strategy

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Math GrandMaster free?

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

### Is 黑白无双 free?

黑白无双 is free to download, with no in-app purchases.

### Which has better reviews, Math GrandMaster or 黑白无双?

黑白无双 is rated higher. Math GrandMaster averages 4.8 out of 5 from 4 ratings, while 黑白无双 averages 5.0 from 3 ratings.

### Do Math GrandMaster or 黑白无双 have ads?

Math GrandMaster shows ads; 黑白无双 does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*