OpenStreetMap (I use organicmaps as a client) is not a viable alternative to me when there is no reviews and no information about departure times. Are there any alternatives that are open-source?
HereWeGo probably the best till now but not open-source.
Edit: wrong spelling of OpenStreetMap
i use öffi for public transportation, maybe there’s something similar for your region? or maybe your region is already included, check here: https://oeffi.schildbach.de/