Bartr app is a common platform to buy and sell used stuff locally in UAE at great deals. The app’s Swipe left feature is to select an Exchange offer and Swipe right to make a buy offer. Install Bartr app now for fun and easy exchanging service.Bartr app is a common platform to buy and sell used stuff locally in UAE at great deals. The app’s Swipe left feature is to select an Exchange offer and Swipe right to make a buy offer. Install Bartr app now for fun and easy exchanging service.