With OpenSignal you can see cell towers around you on a map, and the signal compass points you in the direction you need to walk in to improve your connection immediately.
✓ Signal compass points you in the direction your signal is coming from
✓ Map and radar view of cell towers and Wifi routers
✓ Speed test for download, upload and latency
✓ Coverage maps allow you see the best/worst places for 2G, 3G and 4G
✓ Maps also show network speeds and reliability
✓ See local cell towers
✓ Free and ad-free
More:
✓ Widget
✓ Share your findings and compare your connection with other users
✓ Personal statistics on your signal quality
✓ Set live wallpaper that changes with signal strength - see http://opnsg.nl/signal-wallpaper
✓ Save data to your SD Card
SMS Permission required to count the number of SMS sent to track your usage, SMS are never read (use a packet sniffer to check!)
Phone settings permission allows network reset on certain Android ver