If you don't own a smartphone and have been dying for the past six months to use the iFruit companion app for Grand Theft Auto V, now is your time. Sony has updated the PSN to accommodate it, which you can pick up for free here.
I booted up the iFruit app for a grand total of 10 minutes at the launch of GTA V, and customized my license plate. It didn't work for a few days until Rockstar patched a fix. That was basically my experience with it.
Grand Theft Auto: iFruit [PSN]