TSB Bank customers now have access to a groundbreaking mobile banking application that will change the way some customers handle their finances.

For the past 12 months, TSB's technology services department has been researching and developing a banking app unlike any other, TSB's technology services manager Marie Collins said.

"We haven't found another banking application as personalised and that can be customised like what we're offering," Ms Collins said.

"Everything on here is about you deciding how you want your bank to look."

At the moment, [my]bank is available for iPhones and iPads only, but tablet computers and androids will soon be able to access the free application, she said.

The app has an interface that allows users to join the bank, open, close and name their own accounts via iPhone, and transfer money using "bump" technology, she said.