Comparison

Slitherlink vs "HOOK"

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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

About

"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.

Highlights
  • Minimalist design
  • Relaxing gameplay
  • No ads or time restrictions
  • 60+ levels
  • Calming soundtrack
  • Dark Mode
  • Cloud Saves
Features
Currently charting
Read full description

"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

Slitherlink4 screens
"HOOK"4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Slitherlink ships an update every 4 months, "HOOK" every 5 months. Both last shipped on November 1, 2026.

Scorecard5 real differences · 6 level
Slitherlink versus "HOOK": the parameters behind the verdict, then further details
ParameterSlitherlink"HOOK"
PriceFree — better$2.99
Rating4.8 (461 ratings)4.8 (530 ratings) — better
Positive reviews89.5% of reviews94.8% of reviews — better
Number of ratings461530 — better
Update frequencyEvery 4 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank—#138 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size7 MB216 MB
Age rating4+4+
DeveloperConceptis Ltd.Maciej Targoni

Customer experience

Slitherlink

All ratings457 ratings
Positive96.5%
Neutral2.2%
Negative1.3%
Written reviews171 reviews
Positive89.5%
Neutral7.6%
Negative2.9%

"HOOK"

All ratings509 ratings
Positive96.5%
Neutral1.6%
Negative2.0%
Written reviews382 reviews
Positive94.8%
Neutral2.9%
Negative2.4%

User reviews

Slitherlink

From 461 App Store ratings

What 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 ratings

What 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

10 purchases

Slitherlink

One-time10
  • Easy Variety 1$1.99
  • Easy Variety - Large 1$1.99
  • Medium Variety 1$1.99
Show 7 more
  • 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
None

"HOOK"

No in-app purchases

Questions

Is Slitherlink free?
Slitherlink is free to download, with in-app purchases available.
Is "HOOK" free?
"HOOK" costs $2.99, with no in-app purchases.
Which has better reviews, Slitherlink or "HOOK"?
"HOOK" is rated higher. Slitherlink averages 4.8 out of 5 from 461 ratings, while "HOOK" averages 4.8 from 530 ratings.
Do Slitherlink or "HOOK" have ads?
Neither Slitherlink nor "HOOK" shows ads.
Which is updated more often, Slitherlink or "HOOK"?
Slitherlink ships an update every 4 months, and "HOOK" every 5 months. Most recently, Slitherlink was updated on November 1, 2026 and "HOOK" on November 1, 2026.

Other comparisons