# SumoChess vs Quantum Chess

The clearest difference is update cadence: Quantum Chess at fortnightly against SumoChess's every 13 months. Quantum Chess also leads on iOS requirement (12.0 vs 15.1). On price, ads, 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.

SumoChess ships an update every 13 months, Quantum Chess fortnightly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SumoChess | Quantum Chess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quantum-chess/id6748688911/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 20 MB | 36 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [AnnapurnApp Technologies UG haftungsbeschrankt](https://appshunter.io/developer/1227854970) | [GAMEMORPH AI](https://appshunter.io/developer/1827005759) |

## 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


### Quantum Chess

[App page](https://appshunter.io/ios/app/quantum-chess/id6748688911)

Experience a strategic four-player board game where traditional chess rules evolve over seven distinct phases. The battlefield dynamically shrinks and changes, introducing unique challenges like limited vision and randomized promotions. Only the last king standing can claim victory in this chaotic and unpredictable competition.

**Highlights:** Four-player gameplay, Dynamic 12x12 board, Seven evolving game phases, Shrinking battlefield, Limited vision mechanics, Randomized pawn promotions, No stalemates or draws

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SumoChess free?

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

### Is Quantum Chess free?

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

### Do SumoChess or Quantum Chess have ads?

Neither SumoChess nor Quantum Chess shows ads.

### Which is updated more often, SumoChess or Quantum Chess?

SumoChess ships an update every 13 months, and Quantum Chess fortnightly. Most recently, SumoChess was updated on October 9, 2026 and Quantum Chess on October 7, 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.*