App-starting a vehicle may not solve many traffic issues, but the convenience makes the driving experience better. Drivers potentially can take better care of their vehicles with all of the diagnostic data available in the app. They can can transfer navigation destinations between the app and the digital dash infotainment center (which also is available via Apple CarPlay and Android Auto with other compatible mapping apps). And being able to start and lock the car a bit quicker can at least shorten the commute by a few seconds. As long as people remain mindful enough to turn off their cars and aren’t using the app with their hands behind the wheel, there really aren’t many downsides to phones replacing keyfobs.