# Slitherlink vs Light Up Puzzle!

The clearest difference is in-app purchases: Light Up Puzzle! at none against Slitherlink's 13. Light Up Puzzle! also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (9.0 vs 15.6). Slitherlink's advantage is ads (none vs shown) and ratings volume (461 vs 3). On price, rating and device support there is nothing between them.

Both are free to download. Slitherlink sells 13 one-off in-app purchases. Light Up Puzzle! asks for nothing beyond the download.

Light Up Puzzle! holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Slitherlink has 461 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 89% of Slitherlink's written reviews are positive against 67% of Light Up Puzzle!'s, so the app with the better star average is not the one people write more warmly about.

Slitherlink ships an update every 4 months, Light Up Puzzle! every 3 weeks. The most recent releases landed on October 23, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Slitherlink | Light Up Puzzle! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (461 ratings)](https://appshunter.io/ios/app/slitherlink-loop-the-snake/id605918324/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/light-up-puzzle/id1525682946/reviews)** |
| Number of ratings | **461** | 3 |
| Positive reviews | **89.5% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 7 MB | 51 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Conceptis Ltd.](https://appshunter.io/developer/479420055) | [其跃 吴](https://appshunter.io/developer/660989470) |

## What reviewers say

### Slitherlink

[App page](https://appshunter.io/ios/app/slitherlink-loop-the-snake/id605918324)

Solve logic puzzles by drawing a single loop around clues on a grid. Connect dots to form a continuous line, with no crossings or branches. Offers endless fun and intellectual challenge for puzzle enthusiasts.

**Highlights:** Draw a single continuous loop, Surround numbered clues, Pure logic, no math required, Weekly bonus puzzles, Multiple difficulty levels, Auto complete clues, Highlight link segment

**Features:** Family Sharing, Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Medium Snacks 1 | $0.99 | one-time |
| Easy Variety 1 | $1.99 | one-time |
| Easy Variety - Large 1 | $1.99 | one-time |
| Medium Variety 1 | $1.99 | one-time |
| Medium Variety - Large 1 | $1.99 | one-time |
| Hard Variety 1 | $1.99 | one-time |
| Easy Variety 2 | $1.99 | one-time |
| Medium Variety 2 | $1.99 | one-time |
| Hard Variety 2 | $1.99 | one-time |
| Big & Easy 1 | $1.99 | one-time |
| Big & Medium 1 | $1.99 | one-time |
| Hard Variety - Large 1 | $1.99 | one-time |
| Big & Tough 1 | $1.99 | one-time |

**What reviewers like**

- 🎉 Challenging and fun puzzles
- 👍 Well-designed and intuitive interface
- 🔍 Helpful check and undo features
- 💡 Variety of puzzle sizes and difficulty levels
- 🧠 Requires logical thinking

**What reviewers complain about**

- 🔍 Lack of coloring/marking tools to differentiate loop segments
- 💰 Expensive puzzle pack prices
- 🌙 No dark mode option
- 🐛 Occasional bugs and crashes
- 🔍 Limited free puzzle content

**Reported bugs**

- App not loading properly for some users
- Freezing issues on login screen
- Incompatibility with older devices

**Requested features**

- Add a dark mode option
- Implement coloring/marking tools for loop segments
- Provide more free puzzle content
- Reduce pricing for puzzle packs
- Add a rewind/undo feature to go back to previous puzzle states


### Light Up Puzzle!

[App page](https://appshunter.io/ios/app/light-up-puzzle/id1525682946)

This logic puzzle challenges you to place light bulbs on a grid so that all white squares are illuminated. Black cells with numbers indicate the required number of adjacent light bulbs. Avoid placing bulbs where they can illuminate each other.

**Highlights:** Rectangular grid-based gameplay, Place light bulbs to illuminate white squares, Black cells with numbered constraints, Avoid illuminating other light bulbs, Logical reasoning challenges

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

**In-app purchases:** none


## Frequently asked questions

### Is Slitherlink free?

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

### Is Light Up Puzzle! free?

Light Up Puzzle! is free to download, with no in-app purchases.

### Which has better reviews, Slitherlink or Light Up Puzzle!?

Light Up Puzzle! is rated higher. Slitherlink averages 4.8 out of 5 from 461 ratings, while Light Up Puzzle! averages 5.0 from 3 ratings.

### Do Slitherlink or Light Up Puzzle! have ads?

Light Up Puzzle! shows ads; Slitherlink does not.

### Which is updated more often, Slitherlink or Light Up Puzzle!?

Slitherlink ships an update every 4 months, and Light Up Puzzle! every 3 weeks. Most recently, Slitherlink was updated on October 23, 2026 and Light Up Puzzle! 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.*