# Zen Jigsaw — Puzzle games train your mind > Free nonogram coloring puzzle game to reveal hidden pixel art. (iPhone/iPad app by Beijing Lexinshengwen Technology Co., Ltd..) - Source: https://appshunter.io/ios/app/zen-jigsaw/id1523404205 (this page in markdown: same URL + `.md`) - Developer: [Beijing Lexinshengwen Technology Co., Ltd.](https://appshunter.io/developer/1523404237) - Category: Games, Lifestyle, Board, Puzzle - Price: Free with in-app purchases - Rating: 4.75/5 from 3,378 App Store ratings · 91 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 190 MB - Languages: Afrikaans, Amharic, Arabic, Azerbaijani, Belarusian, Bangla, Bosnian, Khmer, Catalan, Croatian and 50 more - Released: 2020-07-18 - Data updated: 2026-08-25 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/zen-jigsaw/id1523404205/reviews.md ## What is Zen Jigsaw? Happy Pixel - Free Nonogram Coloring Puzzle Game, also named as block pixel puzzle is a free classic nonogram game that challenges you to discover the hidden pixel-art pictures by coloring the blocks. You can free download the brain game for your phone. Happy Pixel Puzzle offers you dozens of creative pictures that are covered by numbers. Train your brain on solving the pixel puzzles and find these pixel arts whenever you want to keep your mind active or pass your time in a pleasant way. Let’s discover the mystery of nonograms! How To Play Happy Pixel Every puzzle in Happy pixel is a pixel art. All you get at first are blocks and colored numbers in some of them. You have to use these colored numbers as hints. Start with one number, drag the correct square or rectangle that contains the exact number of cells. The square or rectangle is filled with the color of this number. This can be very tricky. You have to think about the shape or position of all blocks. All cells of a puzzle have to be filled. After all blocks are colored, a surprising pixel picture will be finally revealed. Key Features -Tons of completely free pixel puzzles, starting from easy to difficult -Solve the puzzles and uncover the hidden pixel-art pictures anywhere -Detailed guidance for beginners of this game -Intelligence and unlimited hints: tap the hints button whenever you having trouble finding the block -Happy Pixel comes in 4 difficulty levels, easy, medium, hard and expert, perfect for Pixel Puzzle beginners and advanced players! -Offline game: don’t need to worry about the WIFI or data networks Happy Pixel also offers -Both challenge and relaxing mode for users -You can create your own creation with the pictures you find after solving the puzzles -Simple but functional interface -You can find the beginners’ guide in the app at any time -Undo your mistake steps without limitation The Happy Pixel game is appropriate for both males and females, the younger generation, and also the elderly. When you first open our Happy Pixel app, you see a complete tutorial on how to color the blocks and discover the hidden pixel-arts. After experiencing several successful trials of solving the puzzles, you can have a try to change the game mode to challenging mode and acquire your feeling of accomplishment by breaking the records continuously! This is a coloring puzzle app for nonogram game lovers. The puzzles of our free Happy Pixel app are completely logical and creative, which can train your brain and stimulate your initiative to some extent. Besides, the way to solve the puzzle - coloring the blocks by numbers also adds more fun for the puzzle-solving game. Happy Pixel is a representative Nonogram Game, a super welcomed kind of game type at present, which can help you consume the time, offer you enough entertainment, and at the same time, sharpen your mind and logical thinking. You don’t need to set aside special time for solving puzzles, just open our happy pixel app whenever you want to kill the time and wherever you are instead. There is no need to worry about the situation of no WIFI either because Happy pixel is an offline game and your daily game progress will be automatically saved. It’s an entertaining and addictive brain game that can help you relieve your stress and anxiety in your life. Train your brain and improve your IQ with Happy Pixel now! ## Key features - Discover hidden pixel-art pictures - Color blocks based on number clues - Dozens of creative pictures - Multiple difficulty levels - Offline gameplay - Create your own pictures ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove Ads | $4.99 | one-time | | Dev test item approved | $61.99 | one-time | | Art of Lines | $15.99 | one-time | | Earth Day11123300000 | $0.89 | one-time | ## What do users think of Zen Jigsaw? Overall sentiment: positive **Pros** - 🚀 Addictive and fun - 👍 Relaxing gameplay - 🎨 Unique puzzle concept - 💡 Offline playability - 🎉 No ads (paid version) **Cons** - 🐛 Glitches and crashes - 🔍 Lack of customization options - 🔄 Repetitive puzzles - 💰 Intrusive ads (free version) - ❌ Removed features (e.g., events) **Commonly reported bugs** - Puzzles not loading correctly - Tracking/permissions issues - Losing progress after updates - Crashes during events - Incorrect puzzle solutions **Most requested features** - Import own photos - More difficulty levels - Ability to disable hints/guides - Themed events and challenges - Progress sync across devices ## Recent user reviews (10 of 91) All indexed reviews: https://appshunter.io/ios/app/zen-jigsaw/id1523404205/reviews.md ### 5/5 — Awesome *2026-06-05, version 1.7.23* So soothing!!!5/5 stars!!! ### 1/5 — Game Never Opens *2026-02-17, version 1.7.23* The ad keeps playing and never displays an 'X'to open the game. I tried many times! ### 5/5 — Best fun game ever *2025-02-08, version 1.7.23* I been playing this for 3 years straight ### 5/5 — The best game ever *2024-09-18, version 1.7.23* You’re game is over 5 stars it deserves 2,000 stars out Of 5 stars!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ### 5/5 — Best game ever *2024-08-26, version 1.7.23* It’s been almost 3 years since I’ve played this game. I broke my phone and lost the name, ever since I’ve gotten my iPad I’ve searched for it. I have finally found it. I thought about it every day for 3 years, that’s how good this game is. You do not understand how happy I am that I found the game, so if that doesn’t tell you how good it is, I don’t know what will. Beautifully made game, I am so thankful to the people that made it. It brought me joy on hard bus rides, and brought me peace through rough fights, it was an important part of my life. And I know that kinda sounds weird, but it’s the truth. I was devastated that I couldn’t remember the name, but look where God brought me back. Now after 3 years of being apart from it, I can finally appreciate what it did for me. Thank you. ### 2/5 — Add an option to log in!!! *2024-07-06, version 1.7.23* I lost all of my progress since I got a new phone!!! 😭😭 ### 4/5 — Fun and addictive but..☹️ *2024-03-24, version 1.7.23* The reason I voted I stars off is because there is a glitch where on the home page of the game it wont let you view it unless you allow tracking which I didn't when I first installed, so I had to uninstall and reinstall because when I went to settings there wasnt an option to allow tracking.. It fortunately started showing the page when I reinstalled and hit allow, but it randomly started yesterday not allowing me to view the page again when I literally did allow tracking!! It seems theres no way to fix it unless reinstalling, resulting in losing all my completed pictures… Its so annoying!! The game is still a great game overall because I can still do daily challenges which are really fun and easy! I just wish i could access the home page so I could continue unfinished projects, settings, and not have to reinstall..❤️❤️ ### 5/5 — One of my favorite games. *2024-02-20, version 1.7.23* Very relaxing. ### 5/5 — The Perfect Game *2023-11-26, version 1.7.23* I cannot stop playing this game and guess what no ads!! This game is perfect especially during a time where almost all free mobile games have ads ### 3/5 — Daily Levels Gone? *2023-11-14, version 1.7.23* I’ve been playing this game for a few years and was working my way through the daily levels, I remember they used to go all the way back to about January 2021, maybe even further. I since deleted the game for some extra space and then re-downloaded it, and now the daily levels only go to August 2023? ## Frequently asked questions about Zen Jigsaw ### What is Happy Pixel? Happy Pixel is a free nonogram coloring puzzle game where you discover hidden pixel-art pictures by coloring blocks according to number clues. It's designed to train your brain and provide entertainment. ### How do I play Happy Pixel? You use the colored numbers as hints to drag the correct square or rectangle containing the exact number of cells. Filling these cells with the corresponding color reveals a pixel picture once all blocks are colored. ### Is Happy Pixel free to play? Yes, the game offers tons of completely free pixel puzzles. However, it does include in-app purchases and advertisements. ### Can I play Happy Pixel offline? Yes, Happy Pixel is an offline game, so you don't need to worry about WIFI or data networks to play. ### What are the difficulty levels in Happy Pixel? The game comes in four difficulty levels: easy, medium, hard, and expert, making it suitable for both beginners and advanced players of pixel puzzles. ## Version history (last 5 releases) ### 1.7.23 — 2022-11-09 New updates - bug fixes and performance improvement ### 1.7.22 — 2021-09-22 New updates - bug fixes and performance improvement ### 1.7.21 — 2021-09-09 New updates - bug fixes and performance improvement ### 1.7.20 — 2021-08-17 New updates - bug fixes and performance improvement ### 1.7.19 — 2021-08-09 New updates - bug fixes ## Apps similar to Zen Jigsaw | App | Rating | Price | Category | | --- | --- | --- | --- | | [Pixel Art － Color by Number](https://appshunter.io/ios/app/pixel-art-color-by-number/id1274972321) | 4.7 (745,167) | Free | Games | | [Pixel Cross™-Puzzle Page Game](https://appshunter.io/ios/app/pixel-cross-puzzle-page-game/id1461733370) | 4.3 (1,413) | Free | Games | | [Picture Builder Pixel Puzzle](https://appshunter.io/ios/app/picture-builder-pixel-puzzle/id6463711142) | 4.7 (19,492) | Free | Games | | [Art Master: Jigsaw Puzzle](https://appshunter.io/ios/app/art-master-jigsaw-puzzle/id1588862493) | 4.6 (38,165) | Free | Games | | [Color Island: Pixel Art Puzzle](https://appshunter.io/ios/app/color-island-pixel-art-puzzle/id1457297026) | 4.6 (2,583) | Free | Games | | [Nonogram.com - Number Games](https://appshunter.io/ios/app/nonogramcom-number-games/id1452992954) | 4.6 (194,213) | Free | Games | ## Related topics [fill shikaku](https://appshunter.io/ios/topics/fill-shikaku) · [train jigsaw puzzle games free](https://appshunter.io/ios/topics/train-jigsaw-puzzle-games-free) · [shikaku](https://appshunter.io/ios/topics/shikaku) · [pixel puzzle](https://appshunter.io/ios/topics/pixel-puzzle) · [pattern games](https://appshunter.io/ios/topics/pattern-games) · [jigsaw puzzle mind games](https://appshunter.io/ios/topics/jigsaw-puzzle-mind-games) --- *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 2026-08-25.*