Rayvolt EIVA USA

I get tons of compliments everywhere I go

Although the primary goal of this app is to control and monitor the functions of electric bicycles, it does more, offering a MP3 player and mapping with directions. In fact, I would have given the app 5 stars except the map is showing me in a location over 1000 miles from where I am. Additionally speed is only displayed in kilometers. If I was not located in the USA, that would be fine but speed limits here are still posted in miles per hour. In any case, the app communicates with and controls my electric bike so well that the bike can function perfectly without a dedicated display.