# Sudoku vs Restore Number

The clearest difference is in-app purchases: Restore Number at none against Sudoku's 1. Restore Number also leads on iOS requirement (9.0 vs 12.0). Sudoku's advantage is ads (none vs shown) and update cadence (fortnightly vs every 6 weeks). On price, rating and device support there is nothing between them.

Both are free to download. Sudoku sells 1 one-off in-app purchase. Restore Number asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Sudoku against 4.3 for Restore Number. That said, the two scores are not equally well evidenced: Sudoku has 36 ratings behind it against 3, so its average is the more settled of the two.

Sudoku ships an update fortnightly, Restore Number every 6 weeks. The most recent releases landed on September 21, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Sudoku | Restore Number |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (36 ratings)](https://appshunter.io/ios/app/sudoku-multiplayer-and-custom/id1500513577/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/restore-number/id1522040197/reviews) |
| Number of ratings | **36** | 3 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 45 MB | 44 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [伟强 周](https://appshunter.io/developer/791062588) | [其跃 吴](https://appshunter.io/developer/660989470) |

## What reviewers say

### Sudoku

[App page](https://appshunter.io/ios/app/sudoku-multiplayer-and-custom/id1500513577)

This logic puzzle game offers endless Sudoku challenges with a focus on improving mathematical thinking and concentration. Play solo, compete with friends, or create your own custom puzzles.

**Highlights:** Endless Sudoku levels, Multiplayer competition, Custom puzzle creation, AI question generation, Mistake checking function, Difficulty progression, Sharing experience

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove AD | $1.99 | one-time |


### Restore Number

[App page](https://appshunter.io/ios/app/restore-number/id1522040197)

This is an action puzzle game where players must rearrange numbered squares on a board into the correct sequence. Utilize a blank space to slide and position the squares, testing your logic and speed. It offers challenging gameplay for many hours.

**Highlights:** Action puzzle gameplay, Number sequencing challenges, Sliding tile mechanics, Logic-based puzzles, Hours of gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku free?

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

### Is Restore Number free?

Restore Number is free to download, with no in-app purchases.

### Which has better reviews, Sudoku or Restore Number?

Sudoku is rated higher. Sudoku averages 4.4 out of 5 from 36 ratings, while Restore Number averages 4.3 from 3 ratings.

### Do Sudoku or Restore Number have ads?

Restore Number shows ads; Sudoku does not.

### Which is updated more often, Sudoku or Restore Number?

Sudoku ships an update fortnightly, and Restore Number every 6 weeks. Most recently, Sudoku was updated on September 21, 2026 and Restore Number on September 14, 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.*