The planner works without an account and without cookies. The site uses no analytics, advertising or tracking, and loads no third-party scripts or fonts.
Your settings, gases and previous dives stay in your browser (local storage). They are sent to our planning server only to compute a plan or a table, and are not stored there.
Like any web server, ours logs each request with its IP address, time and page for security and error analysis. These logs are deleted after 14 days.
For any question about your data, write to diveplanner@sensetrails.com.