# Sudoku Tutor vs DEEP FIELD

The clearest difference is in-app purchases: Sudoku Tutor at none against DEEP FIELD's 1. DEEP FIELD's advantage is update cadence (every 8 days vs every 3 weeks) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

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

Sudoku Tutor ships an update every 3 weeks, DEEP FIELD every 8 days. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Sudoku Tutor | DEEP FIELD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Size | 13 MB | 22 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kenichi Nakagawa](https://appshunter.io/developer/1831663034) | [namimon](https://appshunter.io/developer/1841075359) |

## What reviewers say

### Sudoku Tutor

[App page](https://appshunter.io/ios/app/sudoku-tutor-camera-solver/id6755796331)

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

**In-app purchases:** none


### DEEP FIELD

[App page](https://appshunter.io/ios/app/deep-field-3d-minesweeper/id6792794271)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $2.99 | one-time |


## Frequently asked questions

### Is Sudoku Tutor free?

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

### Is DEEP FIELD free?

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

### Do Sudoku Tutor or DEEP FIELD have ads?

Both Sudoku Tutor and DEEP FIELD show ads.

### Which is updated more often, Sudoku Tutor or DEEP FIELD?

Sudoku Tutor ships an update every 3 weeks, and DEEP FIELD every 8 days. Most recently, Sudoku Tutor was updated on September 30, 2026 and DEEP FIELD on October 9, 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.*