# Sporadic M12 vs Decodoku

The clearest difference is price: Decodoku at Free against Sporadic M12's $0.99. Decodoku also leads on update cadence (every 3 months vs every 38 months) and ratings volume (3 vs 1). On rating, review sentiment, ads and in-app purchases there is nothing between them.

Decodoku is free to download; Sporadic M12 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Sporadic M12 against 5.0 for Decodoku. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Sporadic M12 ships an update every 38 months, Decodoku every 3 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sporadic M12 | Decodoku |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sporadic-m12/id322438247/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/decodoku/id1093080064/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 13 MB | 52 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Magnolia Heights Research and Development](https://appshunter.io/developer/322438250) | [James Robin Wootton](https://appshunter.io/developer/1093080063) |

## What reviewers say

### Sporadic M12

[App page](https://appshunter.io/ios/app/sporadic-m12/id322438247)

A challenging number puzzle game inspired by Rubik's Cube. Players spin rings and swap numbers to match them with colored balls, aiming to return all numbers to their home positions. Each puzzle is randomly generated and solvable, offering unique challenges.

**Highlights:** Spinning number rings, Swapping number pairs, Color-coded ball matching, Randomly generated puzzles, Solvable challenges, Intuitive controls

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

**In-app purchases:** none


### Decodoku

[App page](https://appshunter.io/ios/app/decodoku/id1093080064)

Engage in a unique puzzle game that doubles as a tool for scientific research in quantum error correction. Solve complex challenges to help advance the development of real-life quantum computers. Explore the science behind the game on the developer's website.

**Highlights:** Quantum puzzle gameplay, Scientific research tool, Quantum error correction, Advance quantum computing, Educational science content

**In-app purchases:** none


## Frequently asked questions

### Is Sporadic M12 free?

Sporadic M12 costs $0.99, with no in-app purchases.

### Is Decodoku free?

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

### Which has better reviews, Sporadic M12 or Decodoku?

Sporadic M12 and Decodoku are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Sporadic M12 or Decodoku have ads?

Neither Sporadic M12 nor Decodoku shows ads.

### Which is updated more often, Sporadic M12 or Decodoku?

Sporadic M12 ships an update every 38 months, and Decodoku every 3 months. Most recently, Sporadic M12 was updated on October 23, 2026 and Decodoku on October 24, 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.*