Privacy policy of the “LOGisch” app

Last updated: 15 November 2026 · applies to the LOGisch Android app. The website is covered by the general privacy policy. The German version is legally binding.

In short: LOGisch stores everything on your device. There is no account and no server.

1. Controller

2. Everything stays on your device

LOGisch stores logbook, trip data, track, photos and settings on your device only. There is no server, no user account and no cloud. The app builds no profile and shares nothing with third parties. Data only leaves the device when you export or share it yourself.

3. Location

Location is only used to record track and position, and only when you start recording yourself. A foreground service keeps recording alive and shows a notification while it runs. Without an active recording the app does not access your location.

4. Internet connections

The app uses the internet for three purposes only. The coordinates of the chart area you are viewing and, for technical reasons, your device’s IP address are sent to the respective service. No identifiers are sent.

• Map tiles: OpenFreeMap (openfreemap.org, map data from OpenStreetMap) and OpenSeaMap.
• Weather: MET Norway – Norwegian Meteorological Institute (Norway).
• AIS (optional): aisstream.io, only if you enter your own key and the chart is open. The key is stored encrypted in the Android Keystore.
• Open-Meteo (optional): only if you enter your own Open-Meteo access under “Weather” in the settings (Open-Meteo subscription or your own server). Forecast, wind field and sea state then come from that server instead of MET Norway, and the position or map section is transmitted; host and key are stored encrypted in the Android Keystore. Without such an entry the app never contacts Open-Meteo.

The legal basis is Art. 6(1)(b) GDPR, since chart, weather and AIS cannot be shown without these requests. The European Commission has issued adequacy decisions for the United Kingdom and Switzerland.

Boat network (optional): If you switch on a boat network data source, LOGisch reads values such as position, course, speed, depth, wind and engine speed from a device on the boat’s Wi-Fi, for example the LOGisch gateway. This is a connection on the local network, not to the internet; LOGisch sends nothing into the boat network. The NMEA diagnosis creates a report on the device only; it is passed on only if you share it yourself. It may contain the boat’s position.

5. Permissions

Location (for recording), foreground service (so recording does not stop), internet (charts, weather, AIS; also for the connection to the boat network on Wi-Fi), network state and Wi-Fi multicast (finding the boat network on Wi-Fi) and wake lock (so recording continues in standby). You pick photos through the system picker; the app needs no permanent access to your gallery.

6. No ads, no analytics

LOGisch contains no advertising, no analytics tools and no trackers. No advertising ID is read.

7. Google Play

Download of the app and any purchases are handled through Google Play. Google Ireland Limited handles purchase and payment under its own responsibility and privacy policy. From Google I only receive what is needed for accounting and refunds, such as order number, date, price and country. If you allowed your device to share crash reports with Google, Google provides them to me in aggregated form.

8. Your rights

You have the right to access, rectification, erasure, restriction of processing, data portability and objection (Art. 15 to 21 GDPR). An email to the address above is enough. You may also lodge a complaint with a data protection supervisory authority, for example the one responsible for me: Der Landesbeauftragte für den Datenschutz und die Informationsfreiheit Baden-Württemberg, Lautenschlagerstraße 20, 70173 Stuttgart, Germany.