Hi orux,
first of all: Thank you for the great app!
After some fiddling around I finally managed to set up offline routing with brouter, which works really great.
(I cannot use online routing because I can't install the GP-donation version on my intentionally google-less phone, donated via PayPal instead)
However, it would be really great if there was an option to automatically re-calculate the planned route starting from your current GPS position to the currently active destination, e.g. when intentionally deviating from the route.
Just like other navigation apps / car navigations do it.
Maybe there is such an option, and I just did not find it yet?