Nautical navigator

Nautical navigator is a free offline Android app providing you sea maps from openstreetmap and sea markers from openseamap projects.

Main features:
• Land contour with sea charts colors
• Sea marks
• Planning route via waypoints with detailed information about distance and time to next waypoint
• Tracking your positions
• Anchorage alarm
• Importing and exporting sea planner (tracks + waypoints) to GPX file
• Managing multiple tracks and waypoints in simple menu
• Polar chart of your boat
• Estimation of time to next waypoint depend on the polar charts
• Overview of SOG, COG, Log etc.
• Many other small features