Mobile-only British Atom Bank has launched with biometrics playing a key role in its flagship app.Atom Bank's app features face and voice recognition with liveness detection, alongside the more traditional pin code access.The biometrics come alongside a 3D carousel which users can spin to bring a chosen element into the foreground.By the end of this year, customers will have biometric access to fixed savings, current accounts, overdrafts, debit and credit cards, instant access savings and residential mortgages.