Comparison

Slitherlink vs Ripple Effect

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

Ripple Effect

A logic puzzle game where you fill rooms with numbers according to specific row and column separation rules. It offers over 500 levels across various sizes and difficulties, with features like automatic error highlighting and progress saving.

Highlights
  • Over 500 levels
  • 5 board sizes
  • 5 difficulty levels
  • Automatic wrong number highlighting
  • Autosave progress
  • Best completion time recording
  • Game Center Achievements
Features
Read full description

Ripple Effect is a logic puzzle with simple rules. The puzzle consists of a rectangular board divided into "rooms". Each room must be filled with each of the numbers from 1 to the number of cells in the room. If two identical numbers appear in the same row or column, at least that many cells with other numbers must separate them. For example, if two 4s appear in the same row, then they must be separated by at least 4 cells. **** Ripple Effect features **** # Content - 5 different sizes of board - 5 difficulty levels - more than 500 levels # Features - Highlight wrong number automatically - Autosave the process of unfinished levels - Record best completion time for each level # Challenge - Game Center Achievements - Try to complete as many levels as possible

Screenshots

Slitherlink4 screens
Ripple Effect4 screens

Verdict

The call

The clearest difference is rating: Slitherlink at 4.8 against Ripple Effect's 4.0. Slitherlink also leads on ads (none vs shown) and ratings volume (457 vs 4). On price, update cadence, 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 Ripple Effect sells 1 one-off in-app purchase. 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 4.0. That said, the two scores are not equally well evidenced: Slitherlink has 457 ratings behind it against 4, 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 80% of Ripple Effect's.

UpkeepUpdate frequency

Slitherlink ships an update every 4 months, Ripple Effect every 5 months. The most recent releases landed on October 19, 2026 and October 1, 2026 respectively.

Scorecard4 real differences · 6 level
Slitherlink versus Ripple Effect: the parameters behind the verdict, then further details
ParameterSlitherlinkRipple Effect
PriceFreeFree
Rating4.8 (457 ratings) — better4.0 (4 ratings)
Positive reviews89.5% of reviews — better80.0% of reviews
Number of ratings457 — better4
Update frequencyEvery 4 months — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size7 MB12 MB
Age rating4+4+
DeveloperConceptis Ltd.Stanley Lam

Customer experience

Slitherlink

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

Ripple Effect

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

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

Ripple Effect

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
1 purchases

Ripple Effect

One-time1
  • Upgrade to Full Version$0.99

Questions

Is Slitherlink free?
Slitherlink is free to download, with in-app purchases available.
Is Ripple Effect free?
Ripple Effect is free to download, with in-app purchases available.
Which has better reviews, Slitherlink or Ripple Effect?
Slitherlink is rated higher. Slitherlink averages 4.8 out of 5 from 457 ratings, while Ripple Effect averages 4.0 from 4 ratings.
Do Slitherlink or Ripple Effect have ads?
Ripple Effect shows ads; Slitherlink does not.
Which is updated more often, Slitherlink or Ripple Effect?
Slitherlink ships an update every 4 months, and Ripple Effect every 5 months. Most recently, Slitherlink was updated on October 19, 2026 and Ripple Effect on October 1, 2026.

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