Use the website on your phone: it adapts to small screens and has everything the desktop version has.
Sign in at this website from any phone browser. A bottom bar gives quick access to the main screens.
Only install apps from official app stores, and never enter your password on a link someone sent you.
A notification for every payment in or out, so you always know what is happening with your money.
Freeze and unfreeze your card, change limits and switch online or abroad payments on or off in a tap.
Sign in with your password and a second step, and stay signed in safely on your own phone.
Native iOS and Android apps are on the way. Until then the website works on any phone and has everything the desktop version has.