[quote=“ruben, post:20, topic:1872”]
I mean, their customer support is amazing[/quote]
Highly unlikely we’re talking about the same bank here 
The in-app updates are probably a sign that their app uses some non-native platform like Ionic (but not actually Ionic) that allows you to deploy updates directly to the app, circumventing the App Store. And look what a great UX it results in!