https://www.osmand.net/
Offline mobile maps & navigation
App features:
- Works totally offline (no roaming charges when you are abroad)
*Turn-by-turn voice guidance (recorded and synthesized voices)
*Announce traffic warnings like stop signs, pedestrian crosswalks, or when you are exceeding the speed limit - Optional lane guidance, street name display, and estimated time of arrival
- Supports intermediate points on your itinerary
- Automatic re-routing whenever you deviate from the route
- Search for places by address, by type (e.g.: restaurant, hotel, gas station, museum), or by geographical coordinates
- Carry highly detailed, fully offline maps of any region world wide on your device!
- Display your position and orientation on the map
- Optionally align the map according to compass or your direction of motion
- Save your most important places as Favorites
- Display POIs (points of interest) around you
- Can also display specialized online tile maps
- Can also display satellite view (from Bing)
- Can display different overlays like touring/navigation GPX tracks and additional maps with customizable transparency
- Optionally display place names in English, local, or phonetic spelling
- The offline maps include foot, hiking, and bike paths, great for outdoor activities
- Map display and navigation mode for bicycle and pedestrian
- Optionally display public transport stops (bus, tram, train) including line names
- Optional trip recording to local GPX file or online service
- Optional speed and altitude display
- Display of contour lines and hill-shading (via additional plugin)
- High quality information from the 2 best collaborative projects of the world
- Global maps from OpenStreetMap, available per country or region
- Wikipedia POIs, great for sightseeing (not available in free version)
- Unlimited free map downloads, directly from the app (download limit 7 map files in the free version)
- Always up-to-date maps (updated at least once a month)
- OsmAnd Live - hourly map updates and all features available (available by subscription)
- Compact offline vector maps
- Select between complete map data and just road network (Example: All of Japan is 700 MB, or 200 MB for the road network only)
- Also supports online or cached tile maps