Comparison

Kurotto vs Slitherlink

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

Head to head
About

Kurotto

A logic puzzle game where you fill cells based on rules involving continuous black cells and circles. It's a popular brain teaser originating from Japan, offering a unique challenge for puzzle enthusiasts.

Highlights
  • Binary determination puzzle
  • Circle sum logic
  • Continuous black cell counting
  • Vertical and horizontal rules
  • Unique Japanese puzzle mechanics
Features
Read full description

Kurotto is binary determination puzzle game. It's very popular in Japan. Fill in the cells with the following rules. ・The number in a circle indicates the sum of the number of continuous black cells extending from it, vertically and horizontally. Empty circles may have any number of black cells around them ・Cells with circles cannot be colored

About

Slitherlink

Solve logic puzzles by drawing a single, continuous loop based on number clues. Explore over 1,200 puzzles, including daily challenges and expert levels. Offers offline play, customizable themes, and progress tracking.

Highlights
  • Draw a continuous loop
  • Follow number clues
  • 1,200+ puzzles
  • Daily challenges
  • Offline play
  • Light and dark themes
  • Progress tracking
Features
Read full description

Follow the number clues and draw one continuous loop. Each clue tells you how many of a cell’s edges belong to the loop. Connect the right edges without branches, crossings, or loose ends. 1,200 PUZZLES TO EXPLORE • 900 puzzles across Easy, Medium, and Hard • 300 new Expert puzzles, available with Premium • Start with 100 free Easy puzzles. Premium unlocks the full collection. MAKE IT A DAILY HABIT Try a fresh daily challenge and keep your streak going. Learn the rules through clear explanations, then build your skills with guided practice. SOLVE YOUR WAY Add your own notes to mark cells as inside or outside the loop. Optional automatic crosses offer another solving aid: they are off by default and unavailable in Daily challenges. • Play puzzles offline • Choose readable light and dark themes • Follow your progress with Game Center leaderboards and achievements • Play with VoiceOver labels, hints, and adjustable text Start with a free puzzle and close your first loop.

Screenshots

Kurotto4 screens
Slitherlink4 screens

Verdict

The call

The clearest difference is review sentiment: Kurotto at 100% against Slitherlink's 0%. Kurotto also leads on in-app purchases (none vs 1) and iOS requirement (7.0 vs 18.0). On price, ads 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. Slitherlink sells 1 one-off in-app purchase. Kurotto asks for nothing beyond the download.

Scorecard4 real differences · 6 level
Kurotto versus Slitherlink: the parameters behind the verdict, then further details
ParameterKurottoSlitherlink
PriceFreeFree
Rating4.7 (3 ratings) — better—
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings3 — better—
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS7.0 — better18.0
Further details — not scored
Size14 MB18 MB
Age rating4+4+
DeveloperYuki FujimotoDAN URBANEK

Customer experience

Kurotto

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Slitherlink

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Kurotto

No in-app purchases

1 purchases

Slitherlink

One-time1
  • Slitherlink Premium Unlock$3.00

Questions

Is Kurotto free?
Kurotto is free to download, with no in-app purchases.
Is Slitherlink free?
Slitherlink is free to download, with in-app purchases available.
Do Kurotto or Slitherlink have ads?
Neither Kurotto nor Slitherlink shows ads.

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