- Edited
Magic Earth's privacy policy is detailed in a pdf file (below). I drive; routing information is "anonymously retained for 365 days". It's not great, but I can live with it.
Traffic functionality, though, is apparently retained in perpetuity ("anonymously retained").
You'll have to see what the pdf says about public transportation.
Because I saw consistently among map apps that privacy is worse concerning the use of traffic functionality, I created two profiles in GrapheneOS: one for the privacy respecting map apps (with traffic functionality toggled off) and one for the map apps I use for traffic functionality. In addition, I'm using RethinkDNS (1) to block analytics and also servers for data brokers (2) to use a vpn via a wireguard config file
Re: the privacy respecting apps, I've been testing several for the past several weeks that I'm very pleased with; none of them need GSF and Google Play Services. Maybe you could evaluate those for public transportation.
- Mapy.cz (https://en.mapy.cz/mobilepromo)
- Organic Maps (https://organicmaps.app/)
- Guru Maps (https://gurumaps.app/)
- Here WeGo
https://www.magicearth.com/privacy/
https://www.magicearth.com/wp-content/uploads/2019/09/MagicEarth-User-Data-Privacy_20190902.pdf