Don't know if op was indeed talking about ING, but their app was, for a time, very wrong on Android as they seemed to have rewritten it on a Cordova/Phonegap st

Don't know if op was indeed talking about ING, but their app was, for a time, very wrong on Android as they seemed to have rewritten it on a Cordova/Phonegap stack which subsequently tanked their rating on the play store. Looks like they have released a new native version since then - at least on the french store.