The Switchboard Android application is free to use forever!
Once you plug in a compatible AOBRD + ELD Engine Module (which you can purchase from here), you will be FMCSA & NSC compliant and do not have to pay any monthly fees.
The Switchboard AOBRD + ELD engine module plugs into your vehicle to get you compliant with the FMCSA ELD Mandate.
Switchboard's AOBRD + ELD engine module records engine odometer readings, speed, truck location, and more. The device will communicate with your smartphone or tablet to record your hours-of-service according to FMCSA regulations.