ExactlyIn my case I always have maps downloaded with public transport data (using OsmAnd, no Google license needed), but it's not quite as good as routing with

ExactlyIn my case I always have maps downloaded with public transport data (using OsmAnd, no Google license needed), but it's not quite as good as routing with live updates. I don't know about your country, but in Aachen, Germany they drive using a "from" schedule. So if it says "line 3 to Haaren: 09:33" then that doesn't mean "at 0933" but "somewhere from 0933 onwards but definitely not sooner".