This site tracks the status of what apps work: https://privsec.dev/posts/android/banking-applications-compa...

The official GrapheneOS docs contains a developer guide on how to fix banking apps when they are not working. Bank app developers have been surprisingly receptive to making the changes, weirdly enough. You can see in some of the issues tracked on the site where people reached out and the developers eventually made the apps work.

I've been running GrapheneOS for a while (I have posts on the blog in my bio if you want to see some day-to-day info) and only one bank app gave me trouble. I had to toggle a setting and then everything worked.

Separate from this is wallet and payment apps which still have not had much traction on GrapheneOS.

You can check your specific app here: https://privsec.dev/posts/android/banking-applications-compa...

GrapheneOS has convinced apps to add compatibility. Hell, Roblox has official GrapheneOS support. The idea is to get more users in order to convince the very few apps that block GrapheneOS, to support it.

Probably not, because of Google attestation, the cancer of Android.

Amongst the several banks I deal with, only one uses Google's attestation framework in a way that blocks GrapheneOS.

That said, the website still works fine for that one.