# loopr: Yajilin Logic Puzzles — Draw the Loop. Solve the Grid. > Logic puzzle game: shade cells and draw a single loop based on arrow clues. (iPhone/iPad app by Leon Cross.) - Source: https://appshunter.io/ios/app/loopr-yajilin-logic-puzzles/id6758910766 (this page in markdown: same URL + `.md`) - Developer: [Leon Cross](https://appshunter.io/developer/1866520699) - Category: Games, Puzzle - Price: $3.99 - Rating: 5.00/5 from 3 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 45 MB - Languages: American English - Released: 2026-02-16 - Data updated: 2026-08-23 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/loopr-yajilin-logic-puzzles/id6758910766/reviews.md ## What is loopr? Shade cells. Draw a loop. Solve it with pure logic. loopr is a loop puzzle where arrow clues tell you how many cells to shade, then you draw a single continuous path through everything that's left. If you love Slitherlink, Masyu, or any Nikoli puzzle, this is your next obsession. Based on Yajilin — a classic Japanese grid puzzle originally published by Nikoli and featured in the World Puzzle Championship. Every puzzle has exactly one solution, discoverable through pure logic. No guessing required. DAILY CHALLENGES A fresh puzzle every day at three difficulty levels. Complete all three to keep your streak alive. HUNDREDS OF PUZZLES Easy, Medium, and Hard. Every puzzle is hand-crafted and solvable through logic alone. THE GAUNTLET A massive weekly puzzle that pushes your logic to the limit. One grid. One week. Good luck. SMART HINTS Stuck? Tap an arrow clue to reveal what should be there. No spoilers, no paywall. STATS & STREAKS Track your best times, daily streaks, and personal records. Badges and milestones mark your progress as you improve. LEARN IN UNDER A MINUTE Interactive tutorial and strategy guide get you solving quickly. If you've played Slitherlink or any loop puzzle, you'll pick this up fast. ONE PURCHASE. NO ADS. No ads between puzzles. No subscription. Pay once, play forever. Clean, minimal design with a dark theme. Accessibility options including adjustable text size, high contrast mode, and reduced animations. Perfect for fans of Slitherlink, Masyu, Sudoku, Nonograms, and other Nikoli logic puzzles. ## Key features - Shade cells and draw a loop - Daily challenges with difficulty levels - Hundreds of hand-crafted puzzles - Weekly 'The Gauntlet' puzzle - Smart hints system - Stats, streaks, and progress tracking - Interactive tutorial ## Chart rankings - #194 in Top Paid · Puzzle (US App Store) ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/loopr-yajilin-logic-puzzles/id6758910766/reviews.md ### 3/5 — well done app, however *2026-03-18* Love yajilin Puzzles and glad there as an App for this that is so clean but there are so many crashes!! Plz fix **Developer response:** Thank you so much for the kind words - I'm really so glad you're enjoying it! I'm sorry about the crashes. I've pushed an update (1.0.5) that I believe fixes this. If you're still seeing crashes after updating, please email me at support@playloopr.com with your device and iOS version and I'll dig in further. ### 5/5 — Brilliant puzzle game *2026-02-27* Fiendishly difficult but really good fun and satisfying. I love playing this game! ### 5/5 — Super Simple *2026-02-16* This is Super Simple, really easy interaction. It’s great that fully of line so I can play on train 😊 ### 5/5 — One more puzzle… *2026-02-16* The puzzles are really fun, great difficulty curve. I think the ability to undo/redo and erase is really nice. Ultimately just so extremely happy I can play Yajilin on my phone!! ## Frequently asked questions about loopr ### What is loopr? loopr is a logic puzzle game where players shade cells and draw a single continuous loop based on arrow clues. It's inspired by the classic Japanese Yajilin puzzle. ### How do I play loopr? You shade cells according to arrow clue counts and then draw a single loop that passes through all unshaded cells. The game includes an interactive tutorial to get you started quickly. ### Does loopr have ads? No, loopr is ad-free. The game offers a one-time purchase with no ads between puzzles or subscriptions. ### What are the different game modes in loopr? loopr offers Daily Challenges at three difficulty levels, hundreds of pre-made puzzles (Easy, Medium, Hard), and a massive weekly puzzle called 'The Gauntlet'. ### Can I get hints in loopr? Yes, loopr provides smart hints. Tapping an arrow clue will reveal what should be there without spoiling the solution or requiring payment. ### What devices does loopr support? loopr is available on iPhone, iPad, and iPod. It features a clean, minimal design with accessibility options like adjustable text size and high contrast mode. ### How often is loopr updated? The latest version of loopr is 1.0.8, last updated on June 17, 2026. The game is designed to offer a consistent puzzle experience with daily and weekly challenges. ### What is the price of loopr? loopr costs $3.99 and is a one-time purchase. There are no subscriptions or in-app purchases required to play all content. ## Version history (last 5 releases) ### 1.0.9 — 2026-07-27 - Your puzzle now saves continuously as you play, so your progress is safe even if the app closes unexpectedly - General bug fixes and improvements ### 1.0.8 — 2026-06-17 - Your progress now saves automatically — switch apps or get interrupted, and pick up right where you left off - Restart and Show Solution now ask for confirmation before clearing your work - General bug fixes and improvements ### 1.0.7 — 2026-06-02 - Fixed app freezing when drawing on nearly-completed puzzles - Faster, smoother line drawing on larger grids - General performance improvements and bug fixes ### 1.0.6 — 2026-03-25 - Smoother line drawing on fast swipes - Improved animation performance and stability - General bug fixes and polish ### 1.0.5 — 2026-03-20 - Fixed a crash that could occur after completing a puzzle - Improved animation performance and stability - General bug fixes and polish ## More apps by Leon Cross - [dotio: Pips Domino Puzzles](https://appshunter.io/ios/app/dotio-pips-domino-puzzles/id6757383411) - [reina: Queens Logic Puzzles](https://appshunter.io/ios/app/reina-queens-logic-puzzles/id6759612804) All apps by Leon Cross: https://appshunter.io/developer/1866520699 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*