Apps like Boatspeed

Here are some great alternatives to Boatspeed by Hans Joachim Herbertz :
SailFreeGPS
SailFreeGPS
★4.7
Sail Expert: Sailing App
Sail Expert: Sailing App
★4.3
Sail Racer
Sail Racer
★4.3
Marine Navigation
Marine Navigation
★3.6
Sailware (Sailboat Racing)
Sailware (Sailboat Racing)
★4.8
Aqua Map Boating
Aqua Map Boating
★3.3
SailDroid
SailDroid
★4.6
Boat Watch
Boat Watch
★3.4
Social Anchor Alarm
Social Anchor Alarm
★5.0
SailTies: Logbook GPS Tracking
SailTies: Logbook GPS Tracking
★4.6
ASA's Sailing Challenge
ASA's Sailing Challenge
★4.4
PortView
PortView
★4.6
AnchorSentinel
AnchorSentinel
★4.8
Yapp Sailing Course
Yapp Sailing Course
★4.2
GPS Speedometer-Directions-Map
GPS Speedometer-Directions-Map
★4.4
Watersports Tracker
Watersports Tracker
★3.9