# Shape Sudoku vs Triangle Slice

The clearest difference is update cadence: Shape Sudoku at every 6 days against Triangle Slice's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Shape Sudoku sells 1 one-off in-app purchase and Triangle Slice sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Shape Sudoku ships an update every 6 days, Triangle Slice every 4 months. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Shape Sudoku | Triangle Slice |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 8 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Agata Raap](https://appshunter.io/developer/1872514072) | [楚云 徐](https://appshunter.io/developer/1890205892) |

## What reviewers say

### Shape Sudoku

[App page](https://appshunter.io/ios/app/shape-sudoku-form9/id6774104823)

This logic puzzle game uses shapes instead of numbers, making it accessible for those with dyscalculia, young learners, or anyone who prefers visual patterns. Enjoy daily challenges with multiple difficulty levels, helpful tools, and full accessibility features.

**Highlights:** Shape-based Sudoku logic, Daily puzzles, Five difficulty levels, Notes, undo, and hints, Colorblind-friendly design, Full VoiceOver support, No ads or tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| form9+ Lifelong | $7.99 | one-time |


### Triangle Slice

[App page](https://appshunter.io/ios/app/triangle-slice/id6789509255)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game Unlock | $9.99 | one-time |


## Frequently asked questions

### Is Shape Sudoku free?

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

### Is Triangle Slice free?

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

### Do Shape Sudoku or Triangle Slice have ads?

Neither Shape Sudoku nor Triangle Slice shows ads.

### Which is updated more often, Shape Sudoku or Triangle Slice?

Shape Sudoku ships an update every 6 days, and Triangle Slice every 4 months. Most recently, Shape Sudoku was updated on October 31, 2026 and Triangle Slice on November 10, 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.*