[Loughla]

Microsoft does this. eBay also. And steam. Once you install the app, any time there is a sign in, you get a pop up on your phone. Yes/no button. Very convenient.

Why don't more apps do that?

[rolobio]

I disabled my eBay app login pop up because it would never come. My login would sit pending forever. Would much prefer TOTP, even if a little slower.