# Sudoku Solver AI vs IRF

The clearest difference is in-app purchases: IRF at none against Sudoku Solver AI's 4. IRF also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.6). Sudoku Solver AI's advantage is update cadence (fortnightly vs every 6 weeks). 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 $3.99 per month. IRF asks for nothing beyond the download.

Sudoku Solver AI ships an update fortnightly, IRF every 6 weeks. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Sudoku Solver AI | IRF |
| --- | --- | --- |
| 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** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 83 MB | 5 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mohit Singi](https://appshunter.io/developer/1008735375) | [Ingeniørfirmaet Poul Tarp A/S](https://appshunter.io/developer/970385837) |

## 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 | $3.99 | per month |
| 6 Month | $7.99 | per 6 months |
| 1 Year | $12.99 | per year |
| Life Time Pro | $19.99 | one-time |


### IRF

[App page](https://appshunter.io/ios/app/irf/id1471293569)

**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 IRF free?

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

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

Sudoku Solver AI shows ads; IRF does not.

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

Sudoku Solver AI ships an update fortnightly, and IRF every 6 weeks. Most recently, Sudoku Solver AI was updated on October 8, 2026 and IRF on October 6, 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.*