Lassoar
Daily loop puzzles that teach
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
A puzzle a day keeps the brain in shape. One fresh Slitherlink loop every day, thousands more when you want them. No guessing, no ads, no subscription needed. Pay once.
A puzzle a day keeps the brain in shape.
Lassoar is Slitherlink, the classic loop puzzle: draw one closed loop along the dots so that every number touches exactly that many loop sides. Every Lassoar puzzle can be solved by pure reasoning. There is never a guess, and every board is graded by the hardest technique it needs, from easy corner counting to long chains of consequence.
ONE LOOP A DAY
A fresh daily puzzle on a weekly ladder: gentle on Monday, master on Sunday. Keep a streak going (one slip a week is forgiven), race the day's leaderboard through Game Center, and share a spoiler-free result card that challenges a friend to beat your time.
HINTS THAT TEACH
Stuck? A hint shows the next deduction, highlights the corner or clue it uses and names the technique. You learn the patterns instead of getting the answer.
MADE FOR THE PHONE
Tap a side for a line, again for a cross, drag along the dots to draw. Crosses fill in automatically around finished clues. Undo, check for mistakes, pick up where you left off, and sync progress between your devices with iCloud.
FIVE LEVELS, THREE SIZES
Quick 5×5, Classic 7×7 and Grand 10×10 boards, each in five graded levels. Thousands of puzzles, all verified unique by two independent solvers.
FREE, THEN PAY ONCE
The first 25 puzzles are free. After that the daily puzzle and one puzzle of your choice stay free, every day. A single purchase, Unlimited Puzzles, unlocks every puzzle and the full daily archive forever. No ads, no subscription needed, no energy meters.
Made in Sweden by Tarsoul AB, the makers of AstroKnot.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Your records set before the world boards existed are now sent to them once you are signed in, and the Records screen shows your true best for each size and difficulty, daily solves included.
The developer, Tarsoul AB, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tarsoul AB
- Size
- 4.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Unlimited Puzzles $2.99
- Copyright
- © 2026 Tarsoul AB
