PHApplication Overview
SailFreeGPS is a navigation instrument application for smartphones and tablets designed for both sail and motor vessels. It utilizes a foreground service to maintain continuous location tracking.| Specification | Details |
| Minimum OS | Android 7.0 and up |
| Version | 5.0.5 |
| Modifications | Premium features unlocked, debug codes removed, useless files cleaned |
| Supported CPUs | arm64-v8a, armeabi-v7a |
Core Functionality
- Navigation Data: Displays real-time location, course over ground (COG), speed over ground (SOG), maximum speed, average speed, trip distance, and magnetic compass input.
- Data Analysis: Records COG and SOG history (6 hours) and provides configurable GPS filtering for improved accuracy.
- Tracking: Displays tracks on Google Maps (48-hour history) and supports importing/exporting tracks via GPX/KML formats.
- Operational Tools: * MOB (Man OverBoard): Stores location and provides guidance to the point.
- Regatta Mode: Includes a countdown timer and departure line management.
- Waypoints: Supports storage for up to 8 waypoints with GOTO functionality and ETA computation.
- Alarms: Includes anchor and course deviation alarms.
- Utilities: Distance and heading calculation.
Premium Feature Set
The premium version is ad-free and includes the following enhancements:| Category | Premium Features |
| GPS Info | Reset trip/speed data (double-click speed), view compass (long-click course), toggle coordinates display. |
| Waypoints | Increased limit to 200 waypoints; displays relative bearing and tack angles. |
| Regatta | "Gun Button" for time rounding, exact start time input, time-to-kill/save data, and ideal speed-to-line calculations. |
| MOB | Displays relative bearing and tack angles; full-screen graph toggle. |
| Settings | Reverse color mode, hybrid map selection, track speed scale duration (5m, 15m, or all), and manual tack angle configuration. |
| Anchor/Map | Polygon-based adjustable anchor area; SOG/COG overlay on maps; track segments color-coded by speed. |
Recent Changes
- Added "Next" and "Previous" navigation buttons to the Waypoint tab.
- General bug fixes.