In Germany, there are many hiking/hillwalking trails.
Are there any apps or sites that allow people to share hiking/hillwalking routes?
Where I can try to search for nice places people have been, or create my own routes ("I want to do a 20km hike in a circle, starting from within 50km of some town, and there should be a restaurant near the middle for lunch").
Sites like Strava for fitness allow you to share runs and cycle trips you've done.