# Sudoku Solver AI vs KeyHub

The clearest difference is in-app purchases: KeyHub at none against Sudoku Solver AI's 4. KeyHub also leads on ads (none vs shown) and update cadence (weekly vs fortnightly). On price and device support there is nothing between them.

Both are free to download. Sudoku Solver AI sells 4 in-app purchases, starting at $4.99 per month. KeyHub asks for nothing beyond the download.

Sudoku Solver AI ships an update fortnightly, KeyHub weekly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sudoku Solver AI | KeyHub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/sudoku-solver-ai-hints/id1450071180/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 84 MB | 17 MB |
| Requires iOS | 17.6 | **12.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mohit Singi](https://appshunter.io/developer/1008735375) | [Gversion Ltd](https://appshunter.io/developer/1095300042) |

## What reviewers say

### Sudoku Solver AI

[App page](https://appshunter.io/ios/app/sudoku-solver-ai-hints/id1450071180)

This app uses AI and text recognition to solve Sudoku puzzles from photos, screenshots, or manual input. Get hints, play, share, or print your puzzles. An in-app purchase removes ads.

**Highlights:** AI-powered Sudoku solving, Camera and screenshot import, Manual input mode, Get hints for cells, Play, share, and print puzzles, User guide included

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $4.99 | per month |
| 1 Year | $7.99 | per year |
| 6 Month | $7.99 | per 6 months |
| Life Time Pro | $9.99 | one-time |


### KeyHub

[App page](https://appshunter.io/ios/app/keyhub/id1573928964)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Solver AI free?

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

### Is KeyHub free?

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

### Do Sudoku Solver AI or KeyHub have ads?

Sudoku Solver AI shows ads; KeyHub does not.

### Which is updated more often, Sudoku Solver AI or KeyHub?

Sudoku Solver AI ships an update fortnightly, and KeyHub weekly. Most recently, Sudoku Solver AI was updated on October 29, 2026 and KeyHub on October 30, 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.*