Fathom: Sonar Puzzle

Release notes and version history.

Version 1.0August 20, 2026

Initial App Store release for iPhone: twelve handcrafted Campaign missions, Daily Challenge, and Free Dive.
Probe, Sonar, and Deep Pulse scanning with Intel scoring and grades from S to C.
Echo Hunt, Relay Chain, and Sector Survey mission types.
Left- or right-handed controls, landscape play, progress saved on device.