South Korea new 'Open Banking' service, which enables people to access all their bank accounts with just one app, has already garnered more than one million users.
The Financial Services Commission says that as of Wednesday those one million people have registered around 1-point-8 million accounts.
Ten banks are available on the beta version.
In the meantime, the FSC is trying to improve the system so that people don't need to use their account number to register.