Comparison

LOOP vs Slitherlink

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

Head to head
About

LOOP

Features
Read full description

Connect the dots into a single closed loop, using only the numbers as clues. LOOP is a calm, focused logic puzzle for a quiet moment of your day. New to it? The app coaches you one move at a time, so you can start today. LOOP is a Slitherlink puzzle, also known as Fences or Loopy. Each number tells you how many of that cell's four sides belong to the loop. Follow the numbers and draw one unbroken loop with no branches. โ–  PLAY WITH PEACE OF MIND - Free to start. No subscription - No third-party ads (only promotions for the developer's own apps) - Your records stay on your device โ–  WHY YOU'LL LIKE LOOP - Every puzzle has exactly one solution. No ambiguous boards - Easy and Medium can be solved by pure logic, with no guessing - Four levels: Easy, Medium, Hard, Expert - A daily challenge and a streak that grows - A guided how-to walks you through your very first puzzle - Practice mode explains the next move and why it works - Achievements that grow as you play - Undo and redo, pinch to zoom, and drag to draw lines - Stats: puzzles solved, streak, no-hint rate, total play time, and solved / best / average per level - Made for iPhone and iPad, in English and Japanese, with Dark Mode support โ–  GREAT FOR - Fans of Slitherlink and other pencil puzzles - Sudoku players looking for their next logic challenge - Anyone who wants a quiet break to focus - Beginners who want to learn the techniques step by step โ–  PRIVACY AND SAFETY - Puzzles work without an internet connection - No account and no personal information - The app reads public App Store information only to show the developer's other apps

About

Slitherlink

Features
Read full description

Slitherlink, the classic logic puzzle โ€” drawn like pen on paper. The rules are simple. Each number counts the lines surrounding its cell. Satisfy every number while drawing one single closed loop โ€” no branches, no crossings โ€” and the puzzle is complete. It looks easy, and then the logic gets delicious. Every puzzle has exactly one solution. Guessing is never required: every generated puzzle is mathematically verified to have a unique answer. Difficulty names mean something here, too โ€” we measure the depth of reasoning each puzzle actually needs, and only serve ones that earn their label. โ–  Features โ€ข New to Slitherlink? A hands-on tutorial teaches the rules on a tiny practice board โ€ข Four difficulties โ€” from Easy 5ร—5 to Expert 12ร—12 โ€ข Daily Puzzle โ€” the same board for everyone each day, with an attendance calendar and streaks โ€ข Paper-quiet design โ€” an ink-and-paper ledger look, in light and dark โ€ข Comfortable controls โ€” tap to draw, long-press to mark ร—, drag along the dots โ€ข Room for big boards โ€” pinch to zoom, two-finger pan, iPad and Apple Pencil support โ€ข Mistake-proof โ€” unlimited undo/redo and automatic saving โ€ข Track your progress โ€” best and average times per difficulty For the moments you want quiet focus, one board of Slitherlink is enough.

Screenshots

LOOP4 screens
Slitherlink4 screens

Verdict

The call

The clearest difference is in-app purchases: Slitherlink at none against LOOP's 1. Slitherlink also leads on update cadence (every 4 days vs every 2 weeks). LOOP's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. LOOP sells 1 one-off in-app purchase. Slitherlink asks for nothing beyond the download.

UpkeepUpdate frequency

LOOP ships an update every 2 weeks, Slitherlink every 4 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard3 real differences ยท 3 level
LOOP versus Slitherlink: the parameters behind the verdict, then further details
ParameterLOOPSlitherlink
PriceFreeFree
Update frequencyEvery 2 weeksEvery 4 days โ€” better
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details โ€” not scored
Size1 MB16 MB
Age rating4+4+
DevelopertorankiriteByeongjin Lee

In-app purchases

1 purchases

LOOP

One-time1
  • Premium$4.99
None

Slitherlink

No in-app purchases

Questions

Is LOOP free?
LOOP is free to download, with in-app purchases available.
Is Slitherlink free?
Slitherlink is free to download, with no in-app purchases.
Do LOOP or Slitherlink have ads?
Slitherlink shows ads; LOOP does not.
Which is updated more often, LOOP or Slitherlink?
LOOP ships an update every 2 weeks, and Slitherlink every 4 days. Most recently, LOOP was updated on October 28, 2026 and Slitherlink on October 25, 2026.

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