Mariner GPS is a lightweight, offline-first tool designed for seafarers providing:
• Live GPS with precise coordinates display.
• Course & Bearing See your Course Over Ground (COG) and smoothed bearing in degrees, filtered to eliminate jitter.
• Smoothed Speed Raw GPS speed can jump wildly; our exponential smoothing algorithm delivers a rock-steady readout.
• Sunrise & Sunset Times Instant access to today’s sunrise and sunset at your location—no extra downloads or data usage.
• Auto-logging of GPS position and timestamps (local + GMT)
• Map view showing your vessel’s heading
• Offline No internet connection required. Works even in airplane mode.
Simple. Reliable. Nautical.
Updated on
Jul 12, 2025
Maps & Navigation
Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.