# Slitherlink Mastery vs Lights Out*

The clearest difference is rating: Lights Out* at 5.0 against Slitherlink Mastery's 4.4. Lights Out* also leads on in-app purchases (none vs 1) and ads (none vs shown). Slitherlink Mastery's advantage is ratings volume (13 vs 2). On price, update cadence, monetization model and device support there is nothing between them.

Both are free to download. Slitherlink Mastery sells 1 one-off in-app purchase. Lights Out* asks for nothing beyond the download.

Lights Out* holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Slitherlink Mastery has 13 ratings behind it against 2, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Slitherlink Mastery | Lights Out* |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (13 ratings)](https://appshunter.io/ios/app/slitherlink-mastery/id1434231923/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/lights-out/id6670718942/reviews)** |
| Number of ratings | **13** | 2 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | Weekly |
| Monetization | Free | Free |
| Size | 93 MB | 1 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Camilo Fitzgerald](https://appshunter.io/developer/1434231922) | [Alexander Berson](https://appshunter.io/developer/1531453464) |

## What reviewers say

### Slitherlink Mastery

[App page](https://appshunter.io/ios/app/slitherlink-mastery/id1434231923)

Solve addictive logic puzzles with a variety of difficulty levels and grid sizes. Features include touch-screen controls, line coloring, and instant error feedback. Unlock a master difficulty mode for an extra challenge.

**Highlights:** Multiple difficulty levels, Various puzzle sizes, Triangle, Square, and Hex puzzle types, Over 10,000 puzzles, Touch-screen pan and zoom, Instant error indications, Stats and high scores

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mastery Mode | $5.99 | one-time |


### Lights Out*

[App page](https://appshunter.io/ios/app/lights-out/id6670718942)

A logic puzzle game where the objective is to turn off all the lights. Tapping a light also affects its adjacent lights, requiring strategic thinking to solve each level.

**Highlights:** Turn off all lights, Tap to toggle lights, Affects adjacent lights, Strategic puzzle solving, Simple tap interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Slitherlink Mastery free?

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

### Is Lights Out* free?

Lights Out* is free to download, with no in-app purchases.

### Which has better reviews, Slitherlink Mastery or Lights Out*?

Lights Out* is rated higher. Slitherlink Mastery averages 4.4 out of 5 from 13 ratings, while Lights Out* averages 5.0 from 2 ratings.

### Do Slitherlink Mastery or Lights Out* have ads?

Slitherlink Mastery shows ads; Lights Out* does not.

### Which is updated more often, Slitherlink Mastery or Lights Out*?

Slitherlink Mastery ships an update weekly, and Lights Out* weekly. Most recently, Slitherlink Mastery was updated on October 25, 2026 and Lights Out* on October 24, 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.*