2025-08-19 00:00:00 Official application of the Barcelona ATM to travel on public transport with your mobile phone and consult and top up your T-mobility card. • Sign up for T-mobility and register your details to complete procedures online. • Turn your mobile into a virtual card and access transport without the need for a physical card. • Ask for the personalized plastic T-mobility. • If you travel with a plastic or cardboard T-mobility, use the app to check your information and top-up.