Some alternatives to Google Maps:
Websites:
https://www.openstreetmap.org/
https://maps.mapcat.com/
Apps:
OSMand for Android (Google Play)
https://play.google.com/store/apps/details?id=net.osmand
OSMand for Android (F-Droid)
https://f-droid.org/en/packages/net.osmand.plus/
OSMand for iPhone
https://itunes.apple.com/app/apple-store/id934850257
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