@sic_semper_tyrannis
If you can get the parcels from the municipality then you can probably give them a false OSM tag that renders and convert to show on OsmAnd via OsmAndMapCreator (then sideload them). It might be best to convert the addresses to OSM format too so they display.
Alternately there are two apps for putting QGIS projects on a mobile phone: QField and Merging/Input. They are meant for data collection but can be used to just display things as well.




@pr06lefs
Their privacy policy is here:
https://streetcomplete.app/privacy
It also looks to the tile providers privacy policy.
Only F-Droid would take the stated purpose of an app and warn you about it as an anti-feature, but here we are.
@lemmydividebyzero @openstreetmap