My hobby are maths and programming, both fairly cheap. Other than the cost of getting a computer of course (and maybe some maths textbooks if you feel the need)

Probably a security issue tho, since you only need the phone password to get in, since the browser saves the password. So thats a risk, so maybe don’t do what I do lmao

For westpac I just login on a browser on my phone, so no app downloaded