[codedokode]

Do not use banking apps on a phone because it is not secure (there is no second factor). Use bank's website on a laptop instead.

[OfSanguineFire]

As I said, for many banks, in order to log in to the bank's website on a laptop, you need to receive a 2FA code sent through the bank’s app on an Android phone.

[mixmastamyk]

I’ve found that many times when a service says this the system will work with any OTP program. They just don’t tell you specifically. Maybe they don’t know, think it’ll confuse, and/or prefer you didn’t.

[anticensor]

Not always, some countries actually require this to be sent over a bank-specific protocol.

[mixmastamyk]

“many times” is roughly equivalent to not always.

[codedokode]

Here (in Russia) typically SMS is used as a second factor and you don't need an app. Requiring to install an app is basically requiring to buy a modern smartphone only to be able to log in.

[DANmode]

Unless you're using a Chromebook or similar device as the laptop, this is kinda out of date, if using best practices.