# Shape Sudoku vs Bubble Arrow

The clearest difference is update cadence: Shape Sudoku at every 6 days against Bubble Arrow's every 6 weeks. Bubble Arrow's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Shape Sudoku sells 1 one-off in-app purchase and Bubble Arrow sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Shape Sudoku ships an update every 6 days, Bubble Arrow every 6 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Shape Sudoku | Bubble Arrow |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 65 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Agata Raap](https://appshunter.io/developer/1872514072) | [Ben Albiston](https://appshunter.io/developer/6782119009) |

## 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 |


### Bubble Arrow

[App page](https://appshunter.io/ios/app/bubble-arrow/id6782119007)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Arrows | $0.99 | one-time |
| 15 Arrows: Starter Pack | $1.99 | one-time |
| 20 Arrows | $2.99 | one-time |
| 50 Arrows | $3.99 | one-time |
| Ultimate Unlock | $29.99 | one-time |


## Frequently asked questions

### Is Shape Sudoku free?

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

### Is Bubble Arrow free?

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

### Do Shape Sudoku or Bubble Arrow have ads?

Neither Shape Sudoku nor Bubble Arrow shows ads.

### Which is updated more often, Shape Sudoku or Bubble Arrow?

Shape Sudoku ships an update every 6 days, and Bubble Arrow every 6 weeks. Most recently, Shape Sudoku was updated on October 31, 2026 and Bubble Arrow on October 31, 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.*