Apps Like Cortex Onboard for iPhone and iPad
Cortex Onboard screenshots
Ranked alternatives
Showing 401–420 of 1,000 ranked alternatives.
ShipXplorer · Ship Tracker
AirNav Systems LLC
Track vessel positions in real-time
Track vessel positions in real-time using AIS data. View latitude, longitude, speed, course, and draught. Identify vessels by unique ID. Access global coverage with accurate maritime tracking.
Celestial Navigator
Omar reis
Calculate positions, track objects, plot lines
Navigation provides perpetual almanac and star finder chart with animation. Calculates lines of position, object data, and meridian passage. Supports running fixes and astronomical position calculations with multiple star observations.
DragAlarm (Anchor guard)
Alejandro Martinez de Carvajal
Set anchor alarm and track drag alerts
Monitor boat anchor status with . Set alerts if anchor is improperly secured and boat is dragging. Calculate swinging radius manually or automatically. View map with anchor location and swinging circle. Receive notifications when anchor is loose.
Great Lakes HD Nautical Charts
Flytomap
Navigate with marine and outdoor maps
Navigate with offline marine, lake, and outdoor maps. Access worldwide satellite and terrain overlays. View local weather forecasts. Use NOAA, USGS, and DRG data for detailed charting.
Maine Lakes - GPS fishing maps
Flytomap
Navigate with marine and outdoor
Navigate with marine and outdoor offline. Overlay satellite and terrain data on charts. Access local weather forecasts. View worldwide and satellite imagery when connected. Use NOAA raster data for detailed navigation.
Minnesota Lakes Fishing Charts
Flytomap
Worldwide marine lake outdoor maps
The app provides worldwide marine, lake, and outdoor maps, satellite imagery, and terrain features. It offers local weather forecasts, tide data, and community information for boaters and fishermen.
SailTimer™
SailTimer Inc.
Marine weather for all boats.
The app provides marine weather forecasts and crowdsourced wind maps. It offers features for all boat types, including route viewing and offline map usage.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.