Maybe one of the projects listed on the OSM Wiki suit your needs?[1]. I did not look into the Apple IMDF, but it sounds like it does almost the same as the Simp

Maybe one of the projects listed on the OSM Wiki suit your needs?[1]. I did not look into the Apple IMDF, but it sounds like it does almost the same as the Simple Indoor Tagging in OSM[2]. [1] https://wiki.openstreetmap.org/wiki/Indoor_Mapping https://wiki.openstreetmap.org/wiki/Indoor_Mapping [2] https://wiki.openstreetmap.org/wiki/Simple_Indoor_Tagging https://wiki.openstreetmap.org/wiki/Simple_Indoor_Tagging