AQUARIUM: Water Logic Puzzle

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.

■ Good to know
• Free to start. No subscriptions
• No third-party ads
• Your records stay on your device

■ 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
• No tracking
• To introduce our other apps, the app may load public information from the App Store. It makes no other network requests