# Sudoku Lab vs Opening Edge

The clearest difference is in-app purchases: Opening Edge at none against Sudoku Lab's 4. Opening Edge also leads on ratings volume (6 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Sudoku Lab sells 4 one-off in-app purchases. Opening Edge asks for nothing beyond the download.

Sudoku Lab holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Opening Edge has 6 ratings behind it against 1, so its average is the more settled of the two.

Sudoku Lab ships an update every 2 weeks, Opening Edge weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sudoku Lab | Opening Edge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sudoku-lab-feingames/id6741718648/reviews)** | [4.8 (6 ratings)](https://appshunter.io/ios/app/opening-edge/id6794144171/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 7 MB | 1 MB |
| Requires iOS | **18.2** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vlad Feinstein](https://appshunter.io/developer/1756392392) | [Eric Winchell](https://appshunter.io/developer/1822148707) |

## What reviewers say

### Sudoku Lab

[App page](https://appshunter.io/ios/app/sudoku-lab-feingames/id6741718648)

Engage with over 50,000 unique Sudoku puzzles and a practice mode featuring 24 distinct strategies. Utilize a 'Forward' command to automate simple moves and a three-stage hint system to guide your strategic thinking. Enjoy offline play with no internet connection required and a commitment to user privacy.

**Highlights:** 50,000+ unique Sudoku puzzles, Practice Mode with 24 strategies, Automated 'Forward' command, Three-stage hint system, Offline play, no internet needed, Private, no data collection

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Strategies | $0.99 | one-time |
| Advanced Strategies | $1.99 | one-time |
| Master Strategies | $2.99 | one-time |
| All Strategies | $4.99 | one-time |


### Opening Edge

[App page](https://appshunter.io/ios/app/opening-edge/id6794144171)

Discover chess openings tailored to your playing style. Input your preferences like aggressiveness and tactical play to get personalized recommendations. Explore alternatives and understand why each opening suits you.

**Highlights:** Personalized chess opening recommendations, Recommendations for White and Black, Match openings to playing style, Clear explanations for recommendations, Alternative opening suggestions, Clean and easy-to-use interface

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Lab free?

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

### Is Opening Edge free?

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

### Which has better reviews, Sudoku Lab or Opening Edge?

Sudoku Lab is rated higher. Sudoku Lab averages 5.0 out of 5 from 1 ratings, while Opening Edge averages 4.8 from 6 ratings.

### Do Sudoku Lab or Opening Edge have ads?

Neither Sudoku Lab nor Opening Edge shows ads.

### Which is updated more often, Sudoku Lab or Opening Edge?

Sudoku Lab ships an update every 2 weeks, and Opening Edge weekly. Most recently, Sudoku Lab was updated on October 30, 2026 and Opening Edge on October 31, 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.*