Comparison

SlitherRunner vs LOOP

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

Head to head
About

SlitherRunner

A puzzle game where players solve logic puzzles like Slitherlink and Numberline. Compete with others by registering your name to see everyone's progress and how many puzzles they've completed. Offers thousands of puzzles across various sizes.

Highlights
  • Slitherlink and Numberline puzzles
  • Thousands of puzzles (4,300+)
  • Automatic save functionality
  • User progress tracking
  • Competitive marathon mode
Features
Read full description

Slither Runner is a Slitherlink puzzle game with a marathon twist: every puzzle you solve takes you 1 km further down the course, and you can see how far other players have run. HOW TO PLAY Connect the dots to make a single loop, with no crossings or branches. Each number shows how many of the four sides around it are part of the loop. Tap between two dots to draw a line, tap again to mark it with an ×, and tap once more to clear it. FEATURES - 4,300 puzzles across five marathon courses: 100 puzzles each on 4×4, 6×6 and 8×8 boards, plus 1,000 on 5×5 and 3,000 on 5×6 - Tap Back on a puzzle and your lines are saved, so you can pick up where you left off - Undo and Clear buttons - Pinch to zoom the board in and out, and drag to move it around - Change the background color, or switch to colorful numbers - Play in English or Japanese RUN WITH OTHER PLAYERS Most puzzle games are only about solving puzzles. In Slither Runner, register a runner name from Option and you appear on the Marathon situation screen, where you can see how far other runners have gotten on each course. Finish a course to give your runner a new piece of gear. You can delete your runner from Option at any time. Slitherlink is also known as Loop the Loop, Fences and Number Line.

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. ■ 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 ■ 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 ■ 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 ■ 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

Screenshots

SlitherRunner4 screens
LOOP4 screens

Verdict

The call

The clearest difference is in-app purchases: SlitherRunner at none against LOOP's 1. SlitherRunner also leads on iOS requirement (15.0 vs 17.0). LOOP's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 3 months). On price and device support 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. LOOP sells 1 one-off in-app purchase. SlitherRunner asks for nothing beyond the download.

UpkeepUpdate frequency

SlitherRunner ships an update every 3 months, LOOP every 2 weeks. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
SlitherRunner versus LOOP: the parameters behind the verdict, then further details
ParameterSlitherRunnerLOOP
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews31.6% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size6 MB1 MB
Age rating4+4+
Developerkasaharantorankirite

In-app purchases

None

SlitherRunner

No in-app purchases

1 purchases

LOOP

One-time1
  • Premium$4.99

Questions

Is SlitherRunner free?
SlitherRunner is free to download, with no in-app purchases.
Is LOOP free?
LOOP is free to download, with in-app purchases available.
Do SlitherRunner or LOOP have ads?
SlitherRunner shows ads; LOOP does not.
Which is updated more often, SlitherRunner or LOOP?
SlitherRunner ships an update every 3 months, and LOOP every 2 weeks. Most recently, SlitherRunner was updated on October 23, 2026 and LOOP on October 28, 2026.

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