Train Franklin’s mutt with Grand Theft Auto 5 app iFruit

A Grand Theft Auto 5 accompaniment app has been launched, allowing players to soup up cars and train a pet Rottweiler.

In the full game, Chop is Franklin's canine pal. With the "Chop the Dog" app, players can pet, feed, water and walk the hound. The happier Chop becomes, the more likely it is to behave well in the game, obeying commands, sniffing out items and even doing tricks.

The "Los Santos Customs" app offers players the opportunity to fool around with customizing their vehicles. You can create and reserve custom license plates.

"iFruit hooks directly into your experience of Grand Theft Auto V with some fun activities to further postpone the need for real social interaction," offers its App Store page. "Keep up-to-date on the latest Grand Theft Auto V news, log into the Rockstar Games Social Club, stay connected on LifeInvader and launch other Rockstar Games apps."

Grand Theft Auto V officially arrives tomorrow. Read Polygon's full review.