Privacy

Turnbook has no accounts and no database. When you ask for a route, the points of your trip are sent to our server, used to work out the route on our own router, and then forgotten: they are not stored, not logged and not sent to anyone else.

To plan a route, the Turnbook app sends the points of your trip (where you start, any stops, and where you are going) to this server, and again from where you are if you miss a turn. The server works the route out with our own router, which runs on the same machine, adds the spoken directions, and sends it back. It keeps nothing: no database, no file, no log line. To stop any one device flooding the router, it counts requests per network address in memory for a minute. It tells Lotl Observe, which we run, how many routes were asked for and whether they worked, never where they went.

What we collect

We collect and store the following:

The points of a route you ask for: The latitude and longitude of each place on a trip you plan (where you start, often home, any stops, and where you are going), and, when you miss a turn, where you are at that moment, sent so the server can work out a new route. The server sends them to our own router, which runs on the same machine, and returns the route. They are not stored, not logged and not sent to anyone else. Nothing is sent until you ask for a route.memory. Held briefly during the request and discarded. never written to a database, a file or a log. Legal basis: legitimate interests. Not individually deletable.
Your network address, for one minute: To stop any one device from flooding the router, the server counts route requests per network (IP) address in memory for one minute, then forgets them. The address is not stored or logged, and a restart clears the count.memory. Held briefly during the request and discarded. held in memory for one minute. Legal basis: legitimate interests. Not individually deletable.
Usage counts and errors: For each route request, the server tells Lotl Observe (which we run) which kind of route was asked for, how many points it had, which roads were avoided, and whether it worked or why not. Errors are reported with a fixed label and where in the code they happened. Never a coordinate, an address or anything that identifies you.Stored on our server. Kept permanently. as daily counts; the raw events are deleted after 90 days. Legal basis: legitimate interests. Not individually deletable. Shared with: Lotl Observe.

Third parties

These external services receive some of your data:

DigitalOcean — the public front door that passes requests on to our own server; it does not keep them

Your rights

Turnbook's server stores nothing about you, so there is nothing to export, correct or delete here. The points of a trip are only sent when you ask for a route.

Last updated: 2026-10-06.