# Slitherlink vs Arrow Sudoku

The clearest difference is price: Slitherlink at Free against Arrow Sudoku's $4.99. Slitherlink also leads on update cadence (every 4 months vs every 12 months) and ratings volume (461 vs 45). Arrow Sudoku's advantage is in-app purchases (none vs 13) and chart position (#149 vs unranked). On rating, review sentiment, ads and device support there is nothing between them.

Slitherlink is free to download; Arrow Sudoku costs $4.99 up front. Slitherlink sells 13 one-off in-app purchases. Arrow Sudoku asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Slitherlink against 4.8 for Arrow Sudoku. That said, the two scores are not equally well evidenced: Slitherlink has 461 ratings behind it against 45, so its average is the more settled of the two. Written reviews are what separate them: 89% of Slitherlink's written reviews are positive against 88% of Arrow Sudoku's.

Slitherlink ships an update every 4 months, Arrow Sudoku every 12 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Slitherlink | Arrow Sudoku |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.8 (461 ratings)](https://appshunter.io/ios/app/slitherlink-loop-the-snake/id605918324/reviews)** | [4.8 (45 ratings)](https://appshunter.io/ios/app/arrow-sudoku/id1568407537/reviews) |
| Number of ratings | **461** | 45 |
| Positive reviews | **89.5% of reviews** | 87.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#149** |
| Size | 7 MB | 48 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Conceptis Ltd.](https://appshunter.io/developer/479420055) | [Nick Carney](https://appshunter.io/developer/1434235673) |

## 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


### Arrow Sudoku

[App page](https://appshunter.io/ios/app/arrow-sudoku/id1568407537)

**Currently charting:** #149 Top Paid · Board (US App Store)

This logic puzzle game introduces a unique arrow mechanic where numbers along the arrow's shaft must sum to the number at its base. Featuring a curated collection of puzzles from popular Sudoku creators, it offers a challenging and educational experience for players of all skill levels.

**Highlights:** Unique arrow puzzle mechanic, Puzzles curated by top creators, Hybrid puzzle types included, Difficulty calibrated for all levels, Focus on improving solver skills, 100 handcrafted puzzles

**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 Arrow Sudoku free?

Arrow Sudoku costs $4.99, with no in-app purchases.

### Which has better reviews, Slitherlink or Arrow Sudoku?

Slitherlink is rated higher. Slitherlink averages 4.8 out of 5 from 461 ratings, while Arrow Sudoku averages 4.8 from 45 ratings.

### Do Slitherlink or Arrow Sudoku have ads?

Neither Slitherlink nor Arrow Sudoku shows ads.

### Which is updated more often, Slitherlink or Arrow Sudoku?

Slitherlink ships an update every 4 months, and Arrow Sudoku every 12 months. Most recently, Slitherlink was updated on October 26, 2026 and Arrow Sudoku on October 25, 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.*