# Choco abacus vs Microsoft Sudoku

The clearest difference is review sentiment: Choco abacus at 88% against Microsoft Sudoku's 37%. Choco abacus also leads on in-app purchases (none vs 2) and iOS requirement (9.0 vs 12.0). Microsoft Sudoku's advantage is rating (4.7 vs 3.2) and ratings volume (7.4K vs 5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Microsoft Sudoku sells 2 in-app purchases, starting at $1.99 per month. Choco abacus asks for nothing beyond the download.

Microsoft Sudoku holds the better App Store score, 4.7 against 3.2. That said, the two scores are not equally well evidenced: Microsoft Sudoku has 7.4K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 88% of Choco abacus's written reviews are positive against 37% of Microsoft Sudoku's, so the app with the better star average is not the one people write more warmly about.

Choco abacus ships an update monthly, Microsoft Sudoku every 2 months. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Choco abacus | Microsoft Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (5 ratings)](https://appshunter.io/ios/app/choco-abacus/id1104805279/reviews) | **[4.7 (7.4K ratings)](https://appshunter.io/ios/app/microsoft-sudoku/id1462494195/reviews)** |
| Number of ratings | 5 | **7.4K** |
| Positive reviews | **87.5% of reviews** | 37.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 107 MB | 153 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Park Jisang](https://appshunter.io/developer/995438886) | [Microsoft Corporation](https://appshunter.io/developer/298856275) |

## What reviewers say

### Choco abacus

[App page](https://appshunter.io/ios/app/choco-abacus/id1104805279)

Learn and master mental calculation with an engaging abacus game. Features a friendly tutorial and a simple, fun game system that allows you to unlock new stages as you play.

**Highlights:** Easy to learn abacus mechanics, Friendly tutorial for beginners, Simple and fun game system, Unlock new stages through gameplay, Mental calculation practice

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

**In-app purchases:** none


### Microsoft Sudoku

[App page](https://appshunter.io/ios/app/microsoft-sudoku/id1462494195)

Enjoy classic and unique Sudoku puzzles with adjustable difficulty. Engage in daily challenges, track your progress, and customize your gameplay with various themes and settings. An optional premium subscription removes ads and unlocks past challenges.

**Highlights:** Classic and Irregular Sudoku modes, 6 difficulty levels, Daily Challenges with badges, Multiple themes and symbol options, Note-taking and mistake erasing, Cloud save and Xbox Live achievements, Progress tracking and statistics

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Subscription | $1.99 | per month |
| Premium Yearly Subscription | $9.99 | per year |

**What reviewers like**

- 🚀 Intuitive and fast gameplay
- 🔒 Robust security features
- 👍 Variety of puzzle types
- 👍 Customizable options
- 👍 Great for beginners and experts

**What reviewers complain about**

- 🐛 Frequent crashes and freezes
- 🔋 Ads play audio even in silent mode
- 🔋 Excessive ads and intrusive monetization
- 🐛 Progress not saving properly
- 🐛 Compatibility issues on certain devices

**Reported bugs**

- Daily challenge progress not syncing across devices
- Levels and scores resetting unexpectedly
- App getting stuck on loading screens
- Ads hijacking device controls and interrupting background audio

**Requested features**

- Landscape mode support for tablets
- More customization options for notes and highlighting
- Ability to replay past daily challenges
- Improved undo/redo functionality
- Autofill or auto-complete options for advanced players


## Frequently asked questions

### Is Choco abacus free?

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

### Is Microsoft Sudoku free?

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

### Which has better reviews, Choco abacus or Microsoft Sudoku?

Microsoft Sudoku is rated higher. Choco abacus averages 3.2 out of 5 from 5 ratings, while Microsoft Sudoku averages 4.7 from 7.4K ratings.

### Do Choco abacus or Microsoft Sudoku have ads?

Both Choco abacus and Microsoft Sudoku show ads.

### Which is updated more often, Choco abacus or Microsoft Sudoku?

Choco abacus ships an update monthly, and Microsoft Sudoku every 2 months. Most recently, Choco abacus was updated on October 13, 2026 and Microsoft Sudoku on October 18, 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.*