# SumoChess vs Grid Genius

The clearest difference is in-app purchases: SumoChess at none against Grid Genius's 4. SumoChess also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.6). Grid Genius's advantage is update cadence (weekly vs every 13 months). On price and ads there is nothing between them.

Both are free to download. Grid Genius sells 4 one-off in-app purchases. SumoChess asks for nothing beyond the download.

SumoChess ships an update every 13 months, Grid Genius weekly. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SumoChess | Grid Genius |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Weekly** |
| Size | 20 MB | 9 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [AnnapurnApp Technologies UG haftungsbeschrankt](https://appshunter.io/developer/1227854970) | [Maradlo s.r.o.](https://appshunter.io/developer/1589523109) |

## What reviewers say

### SumoChess

[App page](https://appshunter.io/ios/app/sumochess-chess-variant/id6504040225)

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

**In-app purchases:** none


### Grid Genius

[App page](https://appshunter.io/ios/app/grid-genius/id6736571131)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Diamonds | $0.99 | one-time |
| 250 Diamonds | $1.99 | one-time |
| 500 Diamonds | $3.99 | one-time |
| 1000 Diamonds | $7.99 | one-time |


## Frequently asked questions

### Is SumoChess free?

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

### Is Grid Genius free?

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

### Do SumoChess or Grid Genius have ads?

Neither SumoChess nor Grid Genius shows ads.

### Which is updated more often, SumoChess or Grid Genius?

SumoChess ships an update every 13 months, and Grid Genius weekly. Most recently, SumoChess was updated on October 9, 2026 and Grid Genius 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.*