Sonarium: Sonar Puzzle

Sometimes the sea answers

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

The last cell falls, and the whole board lights up. Under those numbers there was a whale the entire time — or a shipwreck, or something you don't have a name for. One rule: every number on the grid is an echo — how many steps, up, down, left or right, to the nearest thing hiding below. Mark everything down there, and the sea shows you what you've found. Sonarium is a logic puzzle played in the dark. No guessing, ever: every puzzle has exactly one solution, and every step can be reasoned out. When the shape closes, the screen lights up — a whale, a shipwreck, something stranger — and the find goes into your Field Guide. THE VOYAGE • Four voyages, sixteen seas, 160 charted puzzles — grids grow from 8×8 to 15×15 • The work deepens as you go: sparser echoes, bigger boards, and later, readings that lie. Put three clues side by side; one won't add up. Catch it. • More than 160 discoveries to log, each with a line from the sonar operator's journal • A few finds hide off the route — the question marks in the guide are for the sharp-eyed • A story told between the puzzles: an echo too regular to be an animal has been following your ship since the first sea ONE SEA, EVERY DAY • Daily Scan: one puzzle a day, the same grid for every player in the world • Keep your streak on the Crew Certificate; share your result without spoiling a single cell • On special scan days, the daily becomes a patrol — and what you find there gets its own page in the guide The first voyage is free. Beyond it, any voyage marked "Open for a limited time" is yours to sail straight through for as long as the mark is there; without the mark, one purchase of the Full Version opens all the rest — no subscription, no chapters sold piecemeal. No ad ever interrupts a puzzle. The only ad in the game is an optional video for an extra daily rescan. No account, no sign-in — progress stays on your device, and the whole game works offline. The sea is waiting. Cast off.

Ratings & Reviews

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The opening training is rewritten. Three boards to solve became five short drills

Version 1.0.1

The developer, Yin Mao, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Yin Mao
Size
  • 36.9 MB
Category
  • Puzzle
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Yin Mao
  • Developer Website
  • Privacy Policy