Binairo vs AQUARIUM

Binairo is a clean binary puzzle and 0-1 logic game for quick daily brain training. Fill the grid with zeros and ones, keep each row and column balanced, avoid triples, and solve by deduction instead of guessing. Play the daily challenge, continue through curated levels, use undo and hints when needed, and compare your times on Game Center leaderboards. The interface is calm, fast, and built with VoiceOver support for accessible play. Start with the free puzzles, then unlock the full premium library when you want more handcrafted binary grids.

Pour water. Match the numbers. AQUARIUM is a calm logic puzzle where you decide how high the water rises in each tank. Every puzzle has exactly one answer, so you can think it through without guessing. ■ How it works - Thick walls divide the grid into tanks - Water settles at the bottom, and its surface is always level - The number beside each row and column tells you how many of its cells hold water - Match every number to solve the puzzle You'll learn it in a minute, and it keeps getting deeper. ■ Features - Four levels: Easy 6×6, Medium 7×7, Hard 8×8 and Expert 9×9 - Hard and Expert hide some clues as "·" for a real brain teaser - A new daily puzzle every day, with streak tracking - Every board is checked to have exactly one solution - Tap to switch between water, empty and unknown, or drag to pour - Optional gravity assist fills the tank below as you go - My Aquarium: Medaka, Neon Tetras and more join your tank as you solve, and their schools keep growing - Track solves, best times and average times by difficulty - Learn the rules on a small interactive tutorial board ■ Perfect if you - Love Sudoku, nonograms or griddlers and want something new - Want a few quiet, focused minutes on the commute or before bed - Prefer a clean, relaxing look over flashy effects - Enjoy slowly collecting and growing something ■ Privacy - No account or sign-in - Your play records stay on your device - No tracking and no third-party ad networks - To introduce our other apps, the app may load public information from the App Store. It makes no other network requests