# Sudoku Lab vs Martha Solitaire

The clearest difference is in-app purchases: Sudoku Lab at none against Martha Solitaire's 3. Sudoku Lab also leads on update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Martha Solitaire sells 3 one-off in-app purchases. Sudoku Lab asks for nothing beyond the download.

Sudoku Lab ships an update monthly, Martha Solitaire every 3 months. The most recent releases landed on October 17, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Sudoku Lab | Martha Solitaire |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/martha-solitaire/id6749283129/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | — | Free |
| Size | 11 MB | 6 MB |
| Requires iOS | **17.4** | 18.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Iuliia Iakimova](https://appshunter.io/developer/1645246409) | [Vlad Feinstein](https://appshunter.io/developer/1756392392) |

## What reviewers say

### Sudoku Lab

[App page](https://appshunter.io/ios/app/sudoku-lab/id6739571292)

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

**In-app purchases:** none


### Martha Solitaire

[App page](https://appshunter.io/ios/app/martha-solitaire/id6749283129)

Experience a unique take on classic solitaire with elegant design and strategic gameplay. This game offers a peaceful mental escape, rewarding careful planning and precise execution.

**Highlights:** Unique layout and mechanics, Rewards careful planning, Elegant solitaire experience, Peaceful mental escape, Suitable for quick breaks or deep thinking

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thank you! | $0.99 | one-time |
| Thank you very much! | $2.99 | one-time |
| Support tip | $9.99 | one-time |


## Frequently asked questions

### Is Sudoku Lab free?

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

### Is Martha Solitaire free?

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

### Do Sudoku Lab or Martha Solitaire have ads?

Neither Sudoku Lab nor Martha Solitaire shows ads.

### Which is updated more often, Sudoku Lab or Martha Solitaire?

Sudoku Lab ships an update monthly, and Martha Solitaire every 3 months. Most recently, Sudoku Lab was updated on October 17, 2026 and Martha Solitaire on October 21, 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.*