Sail-Log - Nautical Log Book

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About this app

Multifunctional track logger for a wide range of uses
Optimized for battery-efficient long-term tracking
In-app sailing log / nautical logbook
Maps and tools for outdoor navigation

➤ Sail-Log tracks your travel routes using the device's GPS receiver. Waypoints are taken either manually or automatically with a user-definable interval set in minutes. As such, the app is designed to consume very little battery power. Sail-Log also offers a tracking mode, allowing you to record your movements by the second.
➤ An editable waypoint-list for each route of your trip lets you keep a complete nautical ship's log in an intuitive manner. Sail-Log will allow you to enter text, choose from a set of logbook entries or shoot photos in-app as well as import them at a later time. Many different options are available for convenient storage of trips, routes and logs.
➤ The map view features a selection of different online map sources. Previously viewed map tiles will remain available while offline. You may also include custom offline maps. Create destination points and navigate with the help of the integrated bearing compass and the numerous map tools, whether in the open country or at sea.
➤ Sail-Log is can be used to document a wide range of travel situations including: offshore sailing cruises, voyages, ship and boat tours, photo geotagging, collecting geo locations (POI), cartography, etc. - for professional or recreational use.

This is a new version of the popular app LD-Log and is identical to it, but without the option to deactivate sail mode.
If you would like to try it first, search for the free version LD-Log Lite.

✹ Ad-free
✹ Minimal power usage
✹ Works offline (no data connection needed)
✹ Runs in standby mode, in background and in parallel to other GPS-apps
✹ Switchable tracking mode allows recording by the second
✹ Editable waypoints (diary / logbook function)
✹ Standardized nautical logbook entries for trip, routes and waypoints
✹ Log separate distances for sail / engine
✹ Quick menu for immediately adding waypoints with text entries or photos (no waiting for GPS necessary)
✹ Multiple images for each waypoint possible (direct capture or image import)
✹ Map view with editable waypoints and functions for outdoor navigation
✹ Selection of different online map sources like OpenStreetMaps, OpenSeaMaps, OpenTopoMaps, USGS, NOAA Nautical Charts and many more
✹ Map cache for offline usage, support for custom offline maps
✹ Manual destination entry, direct map-based destination marking, import of destinations from KML files
✹ Integrated bearing compass with direction display and distance to destination point a.o.
✹ Unlimited number of routes (i.e. trip-days) per trip
✹ Export trips, routes and waypoints as GPX / KML or KMZ files with embedded images and open them directly in other apps
✹ Create logbooks as CSV tables, text or HTML files; these can include images and be printed (e.g. as PDF), sent/opened directly as well as exported to other apps
✹ Save and load trips, with a detailed overview of all saved trips
✹ Wide selection of units available for recording date, distance and position (supports UTM WGS84/ETRS89)
✹ Many preset options for logging and GPS settings, all fully customizable
✹ Detailed manual and in-app help
✹ Requires only essential permission requests (location, storage, network, standby)
✹ Maximum privacy via local data storage

More info, manual and help under
Updated on
May 13, 2023

Data safety

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.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Device or other IDs
Data is encrypted in transit
Data can’t be deleted

What's new

Version 8.0.0
- Comprehensive revision of the overall app file management for Android 10+ (Scoped Storage):
-- Once-only before saving or exporting, it is now necessary to manually select a folder in the main settings
- Optimization of essential requirements for the log function:
-- Once-only before logging it is now necessary to manually adjust a few additional Android app settings and permissions
- Additional optimizations für Android 12 and 13