In Belgian schools I’m showing

http://www.viamichelin.fr mountain views including walking paths and ski slopes

http://www.openstreetmap.org cycling paths

https://wego.here.com this is former navteq/nokia, now owned by a german car manufacturers consortium

https://mydrive.tomtom.com owned by navigation company TomTom

Neeva.com showing limited Apple maps

Streetmap.co.uk with UK postcodes

Hence, POI are not owned by a single application, they are public, in the public domain. Street views is not owned by any single application.

Altitude data for the whole world is shared so X-Plane flight simulator is using this, and the mapping apps also when showing altitude lines.

Best detailed walking maps are owned by national institutions, Ordonance Survey in UK, IGN in France

Kids and the wider public should know about different mapping applications.

Please enjoy, Dr Christophe