Comparison

Slitherlink vs Akari

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

Akari

Place light bulbs on a grid to illuminate every square without bulbs shining on each other. Master hundreds of addictive logic puzzles with daily and weekly challenges.

Highlights
  • Daily puzzle challenges
  • Weekly challenges
  • Multiple difficulty levels
  • Logic puzzle packs
  • Solving strategy guide
  • Player statistics and progress tracking
  • Offline play
Features
Read full description

Puzzle Your Way to Enlightenment! Ready for a mental workout that’s both challenging and fun? Akari, also known as Light Up, is here to brighten your day! Put on your thinking cap and illuminate your way through hundreds of addictive puzzles. This isn’t just a game; it’s a light-bulb moment waiting to happen. How to Play: Place light bulbs on the grid to illuminate every square. But watch out! Bulbs can't shine on each other, and you’ll need to use your wits to avoid lighting up the same area twice. Can you master the art of illumination and solve them all? Features: - Everyday I release a new number game (daily puzzle challenge) - Achievements & Leaderboards: Show off your brilliance and climb to the top of the global leaderboard. - There is also a weekly challenge for geniuses - There are 5 different difficulties (easy to diabolical) - Packs with hand-selected logic puzzle (e.g. for beginners) - Guide with solving strategies - Profile with stats about your skill level & progress Why You’ll Love Akari: - Perfect blend of strategy and logic. - No time limits, just pure puzzling pleasure. - Suitable for all ages. - Play offline anytime, anywhere. Whether you’re a seasoned puzzle master or a curious newcomer, Akari is the perfect way to light up your free time. Download now and start your journey to becoming the ultimate puzzle luminary! Privacy policy: https://guriddo.app/akari/legal/privacy Terms of use: https://guriddo.app/akari/legal/tos

Screenshots

Slitherlink4 screens
Akari4 screens

Verdict

The call

The clearest difference is review sentiment: Slitherlink at 89% against Akari's 40%. Slitherlink also leads on ads (none vs shown) and ratings volume (457 vs 30). Akari's advantage is update cadence (every 3 weeks vs every 4 months). On price, in-app purchases, monetization model 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 13 one-off in-app purchases and Akari sells 29 in-app purchases, starting at $0.79 per 7 days. 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 4.6. That said, the two scores are not equally well evidenced: Slitherlink has 457 ratings behind it against 30, 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 40% of Akari's.

UpkeepUpdate frequency

Slitherlink ships an update every 4 months, Akari every 3 weeks. The most recent releases landed on September 23, 2026 and September 5, 2026 respectively.

Scorecard5 real differences · 5 level
Slitherlink versus Akari: the parameters behind the verdict, then further details
ParameterSlitherlinkAkari
PriceFreeFree
Rating4.8 (457 ratings) — better4.6 (30 ratings)
Positive reviews89.5% of reviews — better40.0% of reviews
Number of ratings457 — better30
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size7 MB73 MB
Age rating4+4+
DeveloperConceptis Ltd.Simon Schuster

Customer experience

Slitherlink

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

Akari

All ratings30 ratings
Positive90.0%
Neutral3.3%
Negative6.7%
Written reviews5 reviews
Positive40.0%
Neutral20.0%
Negative40.0%

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

Akari

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
29 purchases

Akari

Subscriptions3
  • Supporter (Weekly)$0.797 Days
  • Supporter (Monthly)$2.491 Month
  • Supporter (Annual)$14.991 Year
One-time26
  • Beginner Pack 2 (14x14)$0.99
  • Beginner Pack 2 (10x10)$0.99
  • Beginner Pack 2 (5x5)$0.99
Show 23 more
  • Beginner Pack 2 (7x7)$0.99
  • Beginner Pack 1 (5x5)$0.99
  • Beginner Pack 1 (10x10)$0.99
  • Beginner Pack 1 (7x7)$0.99
  • Beginner Pack 1 (14x14)$0.99
  • Advanced Pack 2 (10x10)$1.99
  • Advanced Pack 2 (14x14)$1.99
  • Advanced Pack 2 (5x5)$1.99
  • Expert Pack 2 (10x10)$1.99
  • Expert Pack 2 (14x14)$1.99
  • Advanced Pack 1 (14x14)$1.99
  • Advanced Pack 1 (10x10)$1.99
  • Advanced Pack 1 (7x7)$1.99
  • Expert Pack 1 (10x10)$1.99
  • Expert Pack 1 (14x14)$1.99
  • Advanced Pack 1 (5x5)$1.99
  • Expert Pack 1 (7x7)$1.99
  • Genius Pack 2 (25x25)$3.49
  • Genius Pack 1 (25x25)$3.49
  • Wizard Pack 1 (30x30)$3.49
  • Wizard Pack 1 (30x40)$3.49
  • Wizard Pack 1 (40x50)$3.49
  • Wizard Pack 3 (40x40)$3.99

Questions

Is Slitherlink free?
Slitherlink is free to download, with in-app purchases available.
Is Akari free?
Akari is free to download, with in-app purchases available.
Which has better reviews, Slitherlink or Akari?
Slitherlink is rated higher. Slitherlink averages 4.8 out of 5 from 457 ratings, while Akari averages 4.6 from 30 ratings.
Do Slitherlink or Akari have ads?
Akari shows ads; Slitherlink does not.
Which is updated more often, Slitherlink or Akari?
Slitherlink ships an update every 4 months, and Akari every 3 weeks. Most recently, Slitherlink was updated on September 23, 2026 and Akari on September 5, 2026.

Other comparisons