Blank map. Avoid using internet/data.

Blank map option allows you to see waypoints (including the target one) on a map, but avoid usage of internet data. Map works without any data connection and without mobile signal.

To switch to the Blank map, use map settings button:

And choose Blank map:

Go back and be sure that now nothing in the app will consume even a byte of data from your plan!

Another option to avoid data usage is using offline maps. You can download them via the same map settings screen.