Apps like Polaris GPS Hike, Bike, Marine

Here are some great alternatives to Polaris GPS Hike, Bike, Marine by Disciple Skies Software :
i-Boating:Marine Navigation
i-Boating:Marine Navigation
★4.1
Wavve Boating: Marine Boat GPS
Wavve Boating: Marine Boat GPS
★4.5
Memory-Map
Memory-Map
★3.8
New Zealand Topo Maps
New Zealand Topo Maps
★4.7
C-MAP Boating
C-MAP Boating
★3.9
mKart Marine Navigation
mKart Marine Navigation
★3.4
Aqua Map Boating
Aqua Map Boating
★3.3
Avenza Maps: Offline Mapping
Avenza Maps: Offline Mapping
★4.7
WinGPS™ Marine
WinGPS™ Marine
★3.3
ALTLAS: Trails, Maps & Hike
ALTLAS: Trails, Maps & Hike
★4.4
Route Scout - GPS Topo Mapper
Route Scout - GPS Topo Mapper
★4.6
Marine Navigation
Marine Navigation
★3.6
AIS Flytomap GPS Chart Plotter
AIS Flytomap GPS Chart Plotter
★4.4
onX Backcountry Trail Maps GPS
onX Backcountry Trail Maps GPS
★4.4
Mariner Sailing GPS & Logbook
Mariner Sailing GPS & Logbook
★3.8
PathAway Outdoor GPS Navigator
PathAway Outdoor GPS Navigator
★4.0