Website sites.google.com/site/speleoapps
(repo) github.com/marcocorvi/topodroid
Author M. Corvi
Language: Java
Platform Android
The website contains extensive documentation about the app
Video (D. Bristol)
Calibration data: https://youtu.be/Wpj1u4_K9PY
DistoX functions: https://youtu.be/OhQj18n6oFY
Survey data functions: https://youtu.be/5dJVP-A52NY
Sketching: htts://youtu.be/MviItVhmFWk