# Puzzle IO - Binary Sudoku — Sudoku, but better! > Binary Sudoku logic puzzle game with scoring and leaderboards. (iPhone/iPad app by 99 Up Games.) - Source: https://appshunter.io/ios/app/puzzle-io-binary-sudoku/id1145765167 (this page in markdown: same URL + `.md`) - Developer: [99 Up Games](https://appshunter.io/developer/567396068) - Category: Games, Board, Puzzle - Price: Free with in-app purchases - Rating: 4.60/5 from 348 App Store ratings · 213 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 107 MB - Languages: American English, Dutch, French (France), German (Germany), Italian, Japanese, Chinese (Simplified, China), European Spanish - Released: 2016-09-17 - Data updated: 2026-08-28 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/puzzle-io-binary-sudoku/id1145765167/reviews.md ## What is Puzzle IO? Addictive Logic Fun! Looking for a fresh take on Sudoku? Puzzle IO brings you a modern, fast-paced, and highly addictive logic puzzle experience! Easy to learn, hard to master! * Fill each 10x10 grid with 0s and 1s * Each row and column must have an equal number of 0s and 1s * No three identical numbers in a row! Think fast, score big! * Smart point system: Earn bonuses by solving grids efficiently! * Time-based multipliers: Solve puzzles quickly for higher scores! * Game Center support: Compete with friends and climb the global leaderboards! Endless Challenges! * Six difficulty levels: Unlock harder modes as you improve! * Unlimited unique puzzles: No two grids are the same! * Clean, modern design: Smooth animations & intuitive controls! Ready to train your brain? Download Puzzle IO - Binary Sudoku now and start playing! ## Key features - Fill 10x10 grids with 0s and 1s - Equal 0s and 1s per row/column - No three identical numbers in a row - Smart point system with bonuses - Time-based multipliers for higher scores - Game Center support and global leaderboards - Six difficulty levels - Unlimited unique puzzles ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove Ads | $2.99 | one-time | ## What do users think of Puzzle IO? Overall sentiment: positive **Pros** - 👍 Simple mechanics - 👍 Easy to play one-handed - 👍 Different difficulty modes - 👍 Guess function if you're not sure of your options - 👍 Fun and requires the right level of brain power while not being too difficult - 👍 Addictive and challenging - 👍 Smooth gameplay and well-designed interface - 👍 Great for quick games and brain exercises **Cons** - 🐛 Hint function is not very useful - 🐛 'Watch video' for hints doesn't work on the paid ad-free version - 🔋 High battery consumption - 💸 Too many ads and long ad breaks - 🐛 Incorrect error detection on completed rows/columns - 🐛 Frequent crashes and bugs - 🐛 Game sometimes freezes or becomes unresponsive **Commonly reported bugs** - Incorrect error detection on completed rows/columns - Frequent crashes and bugs - Game sometimes freezes or becomes unresponsive - Ads not loading properly, preventing gameplay **Most requested features** - Dark mode option - Better hint system that explains the logic - Option to turn off row/column completion notifications - More challenging puzzle levels - Ability to create and save custom puzzles ## Recent user reviews (10 of 213) All indexed reviews: https://appshunter.io/ios/app/puzzle-io-binary-sudoku/id1145765167/reviews.md ### 4/5 — I really like this game but there’s some minor problems… *2025-10-09, version 1.7.17* The game is great, let me start by saying that. Pros: - Simple mechanics - Easy to play one-handed - Different difficulty modes - Guess function if you’re not sure of your options - Fun and requires the right level of brain power while not being too difficult that it’s annoying Cons: - The hint function is terrible. It always gives you a hint where it isn’t useful in the slightest when you’re stuck. Some work on this from the developers would make the game a 5/5 - The ‘watch video’ for hints doesn’t work on the paid ad-free version - I would have expected some of the ‘quick’ levels to be a bit more thought out to prevent the possibility of getting ‘stuck’ and having to guess Definitely give it a download, it’s worth it. ### 5/5 — Courage ! *2025-09-27, version 1.7.17* C’est dur mais je vais y arriver…. ### 1/5 — Can’t play without internet *2025-03-06, version 1.7.14* What was a great game has been tainted. A recent update has stopped the game from working without data/wifi. ### 2/5 — Trop de publicités *2025-03-05, version 1.7.14* J’adore ce jeu, par contre, attendre jusqu’à une minute pour voir une publicité, c’est vraiment trop! Je démissionne 😤 ### 4/5 — Warning: ad-free breaks hints! *2025-01-17, version 1.7.10* I really enjoy this, it’s simple and straightforward and it’s an entertaining puzzle. And I really appreciate the ad-free option so you don’t have to constantly watch ads. But one warning: if you buy ad-free, it breaks the “watch ads to get a hint” buttons, so you can no longer earn extra hints. I tried emailing the devs about this months ago and they never responded to me. ### 4/5 — Als jou teckel mijn teckel tekkelt tekkelt mijn teckel jou teckel terug *2025-01-02, version 1.7.10* Te veel reclame ### 4/5 — Great Puzzles w/ good mix of challenging & brainless *2024-09-29, version 1.7.10* I have played this daily since finding it a few weeks back. I even splurged for the ads-free version (reasonable one-time fee). The gameplay is deceptively simple to learn and enjoyable for logic and puzzle game aficionados. My only complaint is a glitchy interface combined with an automated “error-check” that utterly fails at distinguishing between genuine user error and said glitchy interface. Simply explained, there are only three options for each cell: circle, X & blank. One tap is circle; two taps, X; & three taps is back to blank. Often there is a lag after a tap. Unsure if it didn’t detect it or if it’s just lagging. I frequently tap four to eight times to get my choice. Slightly clunky, but not gratingly so. Unfortunately it’s straight up problematic if I’m working on the last empty cell in a row or column. Regularly the wrong option is easily read as an error. (By this I mean, the line is checked before my final tap.) One error equals the loss of the three lives allocated for each game. I’ve adapted by forcing myself to slow down and focus when working on the last empty cell. Though this reduced my official game errors, I’d prefer to either be asked if the line just completed is ready to be checked or simply to have a separate way to submit it once my choice is correctly displayed. I also stop playing the game each day the first time I’m prompted to earn new lives because of interface errors instead of my actual mistakes. Again, the actual game design is visually attractive and fun to play. ### 2/5 — Ads ruin it *2024-02-10, version 1.7.10* The game is great, but the ad time is over a minute and you have to close multiple windows, basically ruins any consistent play. The positive is you usually only do 1 puzzle then close the app because of it ### 2/5 — Popin proposant de la pub récurrent *2024-02-03, version 1.7.10* Cela pourrait être bien sans la popin vous proposant des indices contre de la pub à tout bout de champs ### 1/5 — I’d give zero stars if I could *2024-01-18, version 1.7.10* The puzzle itself isn’t bad. But the ads are the most annoying and pervasive of any puzzle I’ve downloaded. Truly a waste of time. ## Frequently asked questions about Puzzle IO ### What is Puzzle IO - Binary Sudoku? Puzzle IO - Binary Sudoku is a logic puzzle game that offers a fresh take on Sudoku. Players fill 10x10 grids with 0s and 1s, adhering to rules like equal numbers per row and column, and avoiding three identical numbers in a row. ### How does the scoring system work? The game features a smart point system where you can earn bonuses by solving grids efficiently. Additionally, time-based multipliers reward players for solving puzzles quickly, leading to higher scores. ### What are the difficulty levels and puzzle variety? The app offers six difficulty levels, allowing players to unlock harder modes as they improve their skills. It also provides an unlimited supply of unique puzzles, ensuring no two game sessions are the same. ### Can I compete with other players? Yes, the game supports Game Center integration, enabling you to compete with friends and climb global leaderboards. This feature allows for a competitive element and tracking your progress against a wider player base. ### Is the app free to play? The application is free to download and play, but it does include in-app purchases and advertisements. This monetization model allows for continued development while offering optional ways to enhance the player experience. ## Version history (last 5 releases) ### 1.7.17 — 2025-03-11 Update 1.7.17: - Performance Optimization - Maintenance - Fix: Board loading issue - Fix: Board end lock issue ### 1.7.16 — 2025-03-09 Update 1.7.16: - Performance Optimization - Maintenance - Fix: Board loading issue - Fix: Board end lock issue ### 1.7.15 — 2025-03-06 Update 1.7.15: Fix: Board loading issue ### 1.7.14 — 2025-03-04 Update 1.7.14: Performance Optimization Maintenance ### 1.7.10 — 2023-10-13 Version 1.7.10 Optimized systems and performance for new devices. Verified offered ads and IAP functionality. ## Apps similar to Puzzle IO | App | Rating | Price | Category | | --- | --- | --- | --- | | [Sudoku - Brain Puzzle Games](https://appshunter.io/ios/app/sudoku-brain-puzzle-games/id1442749804) | 4.8 (305,807) | Free | Games | | [Sudoku ∙](https://appshunter.io/ios/app/sudoku/id727577974) | 4.7 (1,434) | Free | Games | | [Sudoku Color - Classic Puzzle!](https://appshunter.io/ios/app/sudoku-color-classic-puzzle/id1503221765) | 4.8 (34,525) | Free | Games | | [Block Puzzle: Wood Sudoku Game](https://appshunter.io/ios/app/block-puzzle-wood-sudoku-game/id1583552903) | 4.7 (4,369) | Free | Games | | [Vita Sudoku for Seniors](https://appshunter.io/ios/app/vita-sudoku-for-seniors/id6474989365) | 4.7 (9,401) | Free | Games | | [Sudoku SE](https://appshunter.io/ios/app/sudoku-se/id285755462) | 4.6 (1,875) | Free | Games | ## More apps by 99 Up Games - [Impossible Pixel](https://appshunter.io/ios/app/impossible-pixel/id567396065) - [Vector Jet](https://appshunter.io/ios/app/vector-jet/id949924758) - [WordQuiz!](https://appshunter.io/ios/app/wordquiz/id1296855550) - [Hexa Flow - Color Match](https://appshunter.io/ios/app/hexa-flow-color-match/id6768013028) - [Extra+](https://appshunter.io/ios/app/extra-plus/id6770993094) All apps by 99 Up Games: https://appshunter.io/developer/567396068 ## Related topics [binary puzzle](https://appshunter.io/ios/topics/binary-puzzle) · [binario](https://appshunter.io/ios/topics/binario) · [binary sudoku](https://appshunter.io/ios/topics/binary-sudoku) · [binary game](https://appshunter.io/ios/topics/binary-game) --- *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 2026-08-28.*