A:AnswerAll of the one way remotes send a signal "one way" (to the vehicle only). The two way remotes send a return signal to the remote confirming wether or not the vehicle received the first signal and wether the remote start was successful. This is especially useful when you can't visually see your vehicle.
A:AnswerYou can download the app but youll be asked to NOT create an account until the installation technician is there to link your car with it after the installation is complete. So I’d say just wait.