# Sudoku² vs Vertical Math Workbook 2026

The clearest difference is price: Sudoku² at Free against Vertical Math Workbook 2026's $0.29. Sudoku² also leads on device support (4 vs 2) and iOS requirement (12.0 vs 15.6). Vertical Math Workbook 2026's advantage is in-app purchases (none vs 1) and ads (none vs shown).

Sudoku² is free to download; Vertical Math Workbook 2026 costs $0.29 up front. Sudoku² sells 1 one-off in-app purchase. Vertical Math Workbook 2026 asks for nothing beyond the download.

Sudoku² ships an update every 4 months, Vertical Math Workbook 2026 every 6 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sudoku² | Vertical Math Workbook 2026 |
| --- | --- | --- |
| Price | **Free** | $0.29 |
| Rating | **[3.9 (10 ratings)](https://appshunter.io/ios/app/sudoku/id959450517/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 80.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 5 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [春 李](https://appshunter.io/developer/525245233) | [Nanjing Yunxiaochuang Technology Co., Ltd](https://appshunter.io/developer/1454457703) |

## What reviewers say

### Sudoku²

[App page](https://appshunter.io/ios/app/sudoku/id959450517)

Engage with an endless supply of Sudoku puzzles, ranging from easy to challenging difficulty levels. Features include a distraction-free input pad, note-taking with color options, and customizable error checking. Unlock new levels by completing a single puzzle.

**Highlights:** Infinite Sudoku puzzles, Adjustable difficulty levels, Distraction-free input pad, Color-coded note-taking, Manual/automatic note-taking, Customizable error checking, Multiple highlight modes

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisement | $0.99 | one-time |


### Vertical Math Workbook 2026

[App page](https://appshunter.io/ios/app/vertical-math-workbook-2026/id6780092836)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku² free?

Sudoku² is free to download, with in-app purchases available.

### Is Vertical Math Workbook 2026 free?

Vertical Math Workbook 2026 costs $0.29, with no in-app purchases.

### Do Sudoku² or Vertical Math Workbook 2026 have ads?

Sudoku² shows ads; Vertical Math Workbook 2026 does not.

### Which is updated more often, Sudoku² or Vertical Math Workbook 2026?

Sudoku² ships an update every 4 months, and Vertical Math Workbook 2026 every 6 weeks. Most recently, Sudoku² was updated on October 23, 2026 and Vertical Math Workbook 2026 on October 25, 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.*