The same trusted and most used iGO engine is now available on android devices.
With fast route calculation, high quality maps, smooth and high defined graphics, and all language voice support, iGO primo 2014 apk is the best navigation software. But not for android devices. For android the best software, in MY OPINION, is SYGIC because it has a lot of other great features.
I used igo for a very long time but it looses this competition, and Sygic cammed up with great new fatures. Download Sygic
You can change the language to English, and you CAN use any maps.