telemaxx

Mapsforge Maps are Offline Map, usable without any internet
Mapsforge Maps are up2Date. eg openandromaps are not older than 30 days
Mapsforge Maps having much details for hiker and bikers
Mapsforge Maps are Multilingual, if OSM Data contains that information. Alps are interesting. "Lago di Como" vs "Comer See"
Mapsforge Maps shows also contourlines. openandromaps using precise hires LIDAR Data for many countries. The rest using DEM
Mapsforge Maps V5 also contain 3D Buildings. Openandromaps currently are only V4
Mapsforge Maps contain MTB, Cycling and Hiking Routes. Very interesting!
Mapsforge Maps are us with many Apps like Orux or Locus Maps