Apps like OnCourse - boating & sailing

Here are some great alternatives to OnCourse - boating & sailing by MarineTraffic Applications :
C-MAP Boating
C-MAP Boating
★3.8
KWINDOO Tracking - for sailing
KWINDOO Tracking - for sailing
★4.5
Marine Navigation
Marine Navigation
★3.6
iNavX: Marine Navigation
iNavX: Marine Navigation
★3.2
Marine Navigation Lite
Marine Navigation Lite
★3.6
SailFreeGPS
SailFreeGPS
★4.7
Sail Racer
Sail Racer
★4.4
sail.me: Boat & Yacht rentals
sail.me: Boat & Yacht rentals
★5.0
SeaProof - your Sailing App
SeaProof - your Sailing App
★3.5
ColRegs: Rules of the Road
ColRegs: Rules of the Road
★3.8
i-Boating:Marine Navigation
i-Boating:Marine Navigation
★4.4
Simrad: Companion for Boaters
Simrad: Companion for Boaters
★3.9
Pro Weather Routing Navigation
Pro Weather Routing Navigation
★4.8
Weather - Routing - Navigation
Weather - Routing - Navigation
★4.5
Safe Skipper Essential Boating
Safe Skipper Essential Boating
★4.1
Blue Boat Log - Explore and Tr
Blue Boat Log - Explore and Tr
★3.8