RDBK

RDBK turns your phone into a rally-style roadbook navigator and GPS trip computer for any adventure, whether 4x4, motorcycle, bike, hiking, or running. Follow a digital roadbook note by note with distances, headings, road types, FIA danger grading, and clear pictograms, featuring automatic GPS advancement and an optional per-note map. Record your own GPS tracks even with the screen locked, or run a full trip computer when all you need is an odometer. Everything works offline, free and open. It includes a Reader co-pilot navigator with a paper-style roadbook table, live odometer, current heading, note validation, and approach warnings. The Master GPS trip computer offers total and partial odometers, speed alert bands, a stopwatch, and crash-safe GPX recording without requiring a roadbook. The Recorder lets you log GPX tracks live with accuracy-aware sampling, pause and resume, and geotagged photos to save your route for editing later. RDBK supports background GPS recording while using other apps, works in areas with no cell signal, uses open self-contained shareable roadbook files, lets you browse community routes, and keeps your data strictly private on your device.