Mobile revolution has broken out in the banking market. Customers of PKO Bank Polski, the biggest Polish bank, can now take advantage of the latest generation 4G mobile banking. With the free IKO application they no longer need to carry their wallets with cash and cards with them. Brick-and-mortar and internet store payments as well as ATM cash withdrawals can now be effected through a telephone set alone. The IKO app also enables quick and convenient money transfers to telephone number. In the course of the year, the service will have also become available to customers of other banks.