Organic maps isn't there yet IMO. OSMand is huge, but it's the only app to match Google Maps features.
I can also recommend BRouter (with OSMand) for bike navigation. It's ugly and hacky, but once it works, bike navigation is much, much better than Gmaps'. E.g. it's not sending you down cobblestone roads all the time.
I can also recommend BRouter (with OSMand) for bike navigation. It's ugly and hacky, but once it works, bike navigation is much, much better than Gmaps'. E.g. it's not sending you down cobblestone roads all the time.