Comparison

Slitherlink vs Slitherlink JAM

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

Slitherlink JAM

A logic puzzle game where you draw a single, unbroken loop around a grid of numbers. Each number indicates the number of surrounding walls. Offers infinite puzzles, helpful tools, and leaderboards.

Highlights
  • Infinite free puzzles
  • Logic-based gameplay
  • Tutorial and hints
  • Undo and 'healing' feature
  • Leaderboards and achievements
  • Automatic wall removal options
Features
Read full description

Relax with infinite, free logic puzzles, NO ads, draw one continuous loop using pure deduction, no math required. Each number indicates how many walls surround that cell. The game is an enjoyable combination of logic and searching for the next move. FEATURES: - Practically **INFINITE** number of **FREE** puzzles for every level of difficulty (beginner to advanced) - Best gameplay for creating and removing walls. (No annoying X's) - Tutorial + Puzzles that teach you how to play the game - Hints to help solve puzzles - Undo & "Healing" to correct any mistakes - Leaderboards & Achievements with Game Center integration AWESOME OPTIONS: (in Settings) - Game automatically removes walls around 0's - Game automatically removes dead-ends and extra walls around corners - Game Automatically removes extra walls around completed 1's, 2's and 3's

Screenshots

Slitherlink4 screens
Slitherlink JAM4 screens

Verdict

The call

The clearest difference is update cadence: Slitherlink at every 4 months against Slitherlink JAM's every 113 months. Slitherlink also leads on review sentiment (89% vs 63%) and ratings volume (457 vs 8). On price, ads, in-app purchases and monetization model 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

Both are free to download. Slitherlink sells 13 one-off in-app purchases and Slitherlink JAM sells 12 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Slitherlink holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Slitherlink has 457 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 89% of Slitherlink's written reviews are positive against 63% of Slitherlink JAM's.

UpkeepUpdate frequency

Slitherlink ships an update every 4 months, Slitherlink JAM every 113 months. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Slitherlink versus Slitherlink JAM: the parameters behind the verdict, then further details
ParameterSlitherlinkSlitherlink JAM
PriceFreeFree
Rating4.8 (457 ratings) — better4.5 (8 ratings)
Positive reviews89.5% of reviews — better62.5% of reviews
Number of ratings457 — better8
Update frequencyEvery 4 months — betterEvery 113 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.6 — better16.0
Further details — not scored
Size7 MB4 MB
Age rating4+4+
DeveloperConceptis Ltd.J&M Rapid Application Development, LLC.

Customer experience

Slitherlink

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

Slitherlink JAM

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews8 reviews
Positive62.5%
Neutral12.5%
Negative25.0%

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

Slitherlink JAM

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

Slitherlink

One-time13
  • Medium Snacks 1$0.99
  • Easy Variety 1$1.99
  • Easy Variety - Large 1$1.99
Show 10 more
  • Medium Variety 1$1.99
  • 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
  • Hard Variety - Large 1$1.99
  • Big & Tough 1$1.99
12 purchases

Slitherlink JAM

One-time12
  • Auto Remove Corner's Extra Sides$0.99
  • Auto Remove extras from 0's$0.99
  • Envelope of 10 Hints$0.99
Show 9 more
  • Auto-remove from 1's, 2's, & 3's$1.99
  • Handful of 25 Hints$1.99
  • Shoebox of 40 Hints$2.99
  • Armful of 75 Hints$4.99
  • Crate of 100 Hints$5.99
  • Truck load of 250 Hints$9.99
  • Train car full of 1000 Hints$19.99
  • A Boat-load of 10,000 Hints$49.99
  • A Galaxy of Unlimited Hints$99.99

Questions

Is Slitherlink free?
Slitherlink is free to download, with in-app purchases available.
Is Slitherlink JAM free?
Slitherlink JAM is free to download, with in-app purchases available.
Which has better reviews, Slitherlink or Slitherlink JAM?
Slitherlink is rated higher. Slitherlink averages 4.8 out of 5 from 457 ratings, while Slitherlink JAM averages 4.5 from 8 ratings.
Do Slitherlink or Slitherlink JAM have ads?
Neither Slitherlink nor Slitherlink JAM shows ads.
Which is updated more often, Slitherlink or Slitherlink JAM?
Slitherlink ships an update every 4 months, and Slitherlink JAM every 113 months. Most recently, Slitherlink was updated on October 15, 2026 and Slitherlink JAM on October 8, 2026.

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