OsmAnd "online maps" are much smoother than the default vector maps, because your phone doesn't have to render them (they also take more space).
I find OsmAnd incredible for
- hiking (lots of useful maps, possibility to add overlays like mountain slopes, satellite images, possibility to add maps from other sources as long as you have the tile URL, all maps can be downloaded and used offline, great Altitude/Slope graphs, POI searching),
- cycling (navigation works very well, CyclOSM shows useful information, BRouter for serious bike routing),
- driving (navigation works offline, good as a backup or if you don't like Waze showing you McDonald's ads every time you stop).
Also it's a free software (that you can still pay to help the developers).
I find OsmAnd incredible for
- hiking (lots of useful maps, possibility to add overlays like mountain slopes, satellite images, possibility to add maps from other sources as long as you have the tile URL, all maps can be downloaded and used offline, great Altitude/Slope graphs, POI searching),
- cycling (navigation works very well, CyclOSM shows useful information, BRouter for serious bike routing),
- driving (navigation works offline, good as a backup or if you don't like Waze showing you McDonald's ads every time you stop).
Also it's a free software (that you can still pay to help the developers).