Can you add more map sources?

Problem: The map data being displayed by TrailRunner mini misses some trails or streets. But these are visible in other sources like Google Maps. Can you add these maps to TrailRunner mini?

: TrailRunner mini is based on the OpenStreetMap project. When you create routes, TrailRunner mini follows a hidden network of trails and streets that is based on OpenStreetMap data. The same data is being used to render the visible map. Would I add different map sources like Google Maps, the trail or street may be visible to you but you still cannot use it within the routing editor. This would be very frustrating and therefore I will not add this feature to TrailRunner mini — just because the App is supposed to be a simple route planning tool and no professional mapping solution.

: But what you can do is to contribute to the OpenStreetMap project and fix the problem at its root.

Update: In recent builds of TrailRunner mini and RaceBunny you can choose between different map Sources. But please understand that these still are based on the openStreetMap project data and therefore cover the same level of detail, though the design may differ.

Expert Hint: When you click on the map toolbar icon in TrailRunner mini, select the option to display more map sources. Then choose any of the available. But please understand that these may display different data than the routing editor can display. If that is the case you may use the off-road routing feature to follow these ways.