The only options I know of: 1) root/jailbreak-> not guaranteed, I've only ever done this on ios 2) you can use Fiddler to sniff your own packets when you setup 2FA, I don't know if this method still works and I've also never done it.  3) Desktop Authenticator 4) node-totp/node steam community (basically desktop authenticator in a node package, useful for things)    Note that any of these methods besides jailbreaking/rooting will result in a temp trade ban (I thin