As pointed out on Twitter, the Footpath app isn't complying with the attribution guidelines for the OpenStreetMap data that it uses:
https://twitter.com/iamnunocaldeira/status/11011052697933086...
OSM requests that "for a browsable electronic map, the credit should appear in the corner of the map". Footpath doesn't do this. It hides it away on a credits page.
Using the volunteer work of thousands of mappers, then refusing to comply with their stated attribution request, is really low. I had a lot of sympathy with Footpath before I realised this.