Slitherlink vs "HOOK"
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Slitherlink
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.
- 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
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Surround each clue with lines to form one single loop! Each puzzle consists of a rectangular lattice of dots with some clues in various places. The object is to connect the dots surrounding each clue so that the number of lines equals the value of the clue and the lines around all clues form one continuous loop with no crossings or branches. Empty squares may be surrounded by any number of lines. Slitherlink are addictive loop-forming puzzles which were invented in Japan. Using pure logic and requiring no math to solve, these fascinating puzzles offer endless fun and intellectual entertainment to puzzle fans of all skills and ages. The game features 2-finger tapping for quick zoom, auto complete clues setting and a link segment highlighting option to help to avoid creating separate loops. To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format. For more fun, Slitherlink contains no ads and includes a Weekly Bonus section providing an extra free puzzle each week. PUZZLE FEATURES • 200 free Slitherlink puzzles • Extra bonus puzzle published free each week • Multiple difficulty levels from very easy to extremely hard • Grid sizes up to 16x22 • Puzzle library continuously updates with new content • Manually selected, top quality puzzles • Unique solution for each puzzle • Hours of intellectual challenge and fun • Sharpens logic and improves cognitive skills GAMING FEATURES • No ads • Unlimited check puzzle • Unlimited Undo and Redo • Auto complete clues • Highlight link segment • Quick zoom using 2-finger tap • Concurrently playing and saving multiple puzzles • Puzzle filtering, sorting and archiving options • Dark Mode support • Graphic previews showing puzzles progress as they are being solved • Portrait and landscape screen support (iPad only) • Track puzzle solving times • Backup & restore puzzle progress to iCloud ABOUT Slitherlink have also become popular under other names such as Fences, Loop the Loop, Loopy, Suriza, Dotty Dilemma and Number Line. Similar to Sudoku, Kakuro and Hashi, the puzzles are solved using logic alone. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.conceptispuzzles.com/index.aspx?uri=info/doc/220
"HOOK"
A tranquil puzzle game where you strategically remove hooks from a board. Enjoy a stress-free experience with no ads, time limits, or scores. Discover new mechanics across numerous levels with a calming soundtrack.
- Minimalist design
- Relaxing gameplay
- No ads or time restrictions
- 60+ levels
- Calming soundtrack
- Dark Mode
- Cloud Saves
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"Hook" is a minimal, relaxing puzzle game. Your goal is to remove all the hooks from the board by using various game mechanics that you'll discover along the way. My game is designed to be played without any pressure or stress. There is no ads, no time restrictions or scores. So just chill and enjoy 60 ( and more coming ) levels while listening to a calming soundtrack made by Wojciech Wasiak. - Minimalistic - Relaxing - Simple - Zen - No ads - Dark Mode - Cloud Saves - Made by a solo developer - Can be played offline - Great meditative, ambient soundtrack - 2 milion downloads worldwide Feel free to check out my other games at https://www.rainbowtrain.eu/
Screenshots
Verdict
The clearest difference is price: Slitherlink at Free against "HOOK"'s $2.99. "HOOK"'s advantage is in-app purchases (none vs 10) and chart position (#138 vs unranked). On rating, review sentiment, ratings volume and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Slitherlink is free to download; "HOOK" costs $2.99 up front. Slitherlink sells 10 one-off in-app purchases. "HOOK" 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 "HOOK". Both are backed by a comparable volume of ratings — 461 and 530 respectively. Written reviews are what separate them: 89% of Slitherlink's written reviews are positive against 95% of "HOOK"'s.
Slitherlink ships an update every 4 months, "HOOK" every 5 months. Both last shipped on November 1, 2026.
| Parameter | Slitherlink | "HOOK" |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.8 (461 ratings) | 4.8 (530 ratings) — better |
| Positive reviews | 89.5% of reviews | 94.8% of reviews — better |
| Number of ratings | 461 | 530 — better |
| Update frequency | Every 4 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | — | #138 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 216 MB |
| Age rating | 4+ | 4+ |
| Developer | Conceptis Ltd. | Maciej Targoni |
Customer experience
Slitherlink
"HOOK"
User reviews
Slitherlink
From 461 App Store ratingsWhat we love
- 🎉 Challenging and fun puzzles
- 👍 Well-designed and intuitive interface
- 🔍 Helpful check and undo features
- 💡 Variety of puzzle sizes and difficulty levels
- 🧠 Requires logical thinking
Room to improve
- 🔍 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
"HOOK"
From 530 App Store ratingsWhat we love
- 👍 Relaxing and challenging
- 🎨 Elegant and minimalistic design
- 🎶 Calming background music
- 💡 Unique puzzle mechanics
- 🧠 Mentally stimulating
Room to improve
- 🔍 Difficult to see overlapping elements
- 🔚 Not enough levels
Bugs and requests
Slitherlink
Reported bugs
3 issues- App not loading properly for some users
- Freezing issues on login screen
- Incompatibility with older devices
Requested features
5 requests- 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
"HOOK"
Reported bugs
2 issues- Game gets stuck on startup screen
- No ability to save progress
Requested features
5 requests- More levels
- Dark mode
- Ability to disable audio
- Level editor
- Additional puzzle mechanics
In-app purchases
Slitherlink
- Easy Variety 1$1.99
- Easy Variety - Large 1$1.99
- Medium Variety 1$1.99
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- Medium Variety - Large 1$1.99
- Hard Variety 1$1.99
- Easy Variety 2$1.99
- Medium Variety 2$1.99
- Hard Variety 2$1.99
- Big & Easy 1$1.99
- Big & Medium 1$1.99
"HOOK"
No in-app purchases









