# Decodoku vs OddPawn

The clearest difference is in-app purchases: Decodoku at none against OddPawn's 3. Decodoku also leads on iOS requirement (8.0 vs 14.0.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OddPawn sells 3 one-off in-app purchases. Decodoku asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Decodoku | OddPawn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/decodoku/id1093080064/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 52 MB | 70 MB |
| Requires iOS | **8.0** | 14.0.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Robin Wootton](https://appshunter.io/developer/1093080063) | [Anders Petersen](https://appshunter.io/developer/1631322597) |

## What reviewers say

### 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


### OddPawn

[App page](https://appshunter.io/ios/app/oddpawn/id1631322595)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Credits | $1.99 | one-time |
| 20 Credits | $2.99 | one-time |
| 50 Credits | $6.99 | one-time |


## Frequently asked questions

### Is Decodoku free?

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

### Is OddPawn free?

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

### Do Decodoku or OddPawn have ads?

Neither Decodoku nor OddPawn shows ads.

### Which is updated more often, Decodoku or OddPawn?

Decodoku ships an update every 3 months, and OddPawn every 3 months. Most recently, Decodoku was updated on October 12, 2026 and OddPawn on October 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.*