From OpenStreetMap Wiki
Open-source fork of AndNav2
- Turn-By-Turn Navigation
- Text-2-Speech Instructions
- 4-day Weather Forecast
- accessibility-study (aka 'Where can I get in 30 minutes')
- TpegML Traffic-Feeds
- contribute back GPS traces to the OSM project
AndNav2 has been criticized for using the largest offline data format, by a very wide margin  (dead link). TODO: document if AndRoad improved in this regard.
For support see the Androad Google Group.