About this app
〉No ads. No paywalls. Just great puzzles. SudoKoi is the Sudoku app that gets out of your way. Open it, pick a puzzle, and play. No account. No loading screens. No interruptions — ever. Most puzzle apps are built around ads and dark patterns. SudoKoi is built around the puzzle. 〉Everything You Need. Nothing You Don't. • Classic Sudoku + Killer Sudoku in one app • 5 difficulty levels — Easy to Expert • Smart notes and candidate tracking • Helpful highlights and error detection • Fast, intuitive number input • Play up to 9 games at once • Scan printed Sudoku puzzles from paper • Track your stats and watch yourself improve • Share puzzles with friends 〉Fits Into Your Day Whether you have 2 minutes or 20, SudoKoi is there. Fully offline. No login. No loading screens eating your time. Optimized beautifully for iPhone, iPad, and Mac. 〉Start Free. Upgrade Only If You Want To. A handpicked selection of Classic and Killer puzzles is always free — no timer, no artificial limit. SudoKoi+ unlocks everything: • Thousands of handcrafted puzzles • Unlimited play across all packs • Monthly, yearly, or one-time lifetime options Privacy Policy: https://sudoku.efabian.me/privacy/ Terms of Service: https://sudoku.efabian.me/terms/
Latest release
What’s New
This update fixes an issue with the timer. If SudoKoi has become part of your daily routine, a quick review helps more players find us — and means a lot to a small indie team. Thank you.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 20, 2026 · 10:41 PM Free
Screenshots
