Offline routing is only available in Kurviger Pro. If you want to use offline routing, you can get Kurviger Pro here. Offline routing allows you to plan routes and recalculate routes while navigating without internet connection.
You can select the active routing service(s) in
Settings | Routing | Routing service.
BRouter offline routing (with cross border support):
Settings | Routing | Routing service
Note: BRouter app must remain installed, as it’s used for routing and downloads.