The Android phone and tablet sailing instrument app
GPS speed over ground, compass heading, heel and trim — easy to read analogue and digital instrument panels.



Speedometer
An expanded 0–6 kn scale, big digital readout, plus max, 30-second average and trend.
Heel and trim at a glance
Your boat from astern, with a green target zone, capsize warning marks and a sliding trim indicator.
Marine-style heading tape
Magnetic or true at the tap of a button, with a rotating compass tape like the real instrument.
Private
Works completely offline. Your position never leaves your phone. No accounts, no ads, no tracking.