Hi all,

I've been building a small Android app that turns the raw NMEA 2000 log data from an Actisense W2K-2 gateway into an actual, readable sailing logbook — right on your phone, no laptop needed.

What it does:

• Connects to the W2K-2 over its own WiFi and downloads the log files
• Builds a logbook: departure/arrival ports (reverse-geocoded to real place names, not just coordinates), distance, duration, average/top speed, fuel consumption, engine hours per trip, and a route map per trip
• Works fully offline once the data's on your phone
• Optional "boat mode": turn it on and it keeps checking for the W2K-2, downloads and rebuilds automatically while you're underway, and publishes a final version once you're back in harbour — no need to keep the app open
• Optionally publishes the logbook to your own WordPress site or via SFTP
• No account, no ads, no tracking — your data stays on your device unless you explicitly turn on publishing

Status: it's fully open source (both the app and the underlying Python logbook generator), and so far it's only been run against one motorboat's NMEA 2000 setup on two Android devices. I'd really like to hear from anyone with a different setup — sailboats especially (wind instruments, an engine that's often off underway — I haven't been able to test that at all).

Try the beta (Google Play closed test, just tap "Become a tester" then install from Play):
https://play.google.com/apps/testing/com.ayuus.mysailinglogbook

Source + full user guide (also has a direct APK if you'd rather skip Play Store):
https://github.com/Ayuus/androidsailinglogbook

The underlying Python logbook engine (also usable standalone from a desktop):
https://github.com/Ayuus/nmea2log

Feedback, bug reports, and "this doesn't work with my setup" reports are all very welcome — via GitHub issues or just reply here.