There are dedicated hardware tokens that don't require any particular support on your phone, you copy the number just like if you were using an app to generate

There are dedicated hardware tokens that don't require any particular support on your phone, you copy the number just like if you were using an app to generate TOTP codes except it's on a little LCD screen instead. https://www.cdw.com/product/RSA-SecurID-SID700-Enterprise-plus-hardware-token/3568618 https://www.cdw.com/product/RSA-SecurID-SID700-Enterprise-pl... Phone apps have largely replaced them but for my bank I wouldn't mind having a separate device that's not internet connected. But they cause other issues, like being one more little device to lose and not providing accessibility features like a phone app does (good luck if you're blind).