Having used DuoMobile, very quickly looked at Authy and heard about Google Authenticator from colleagues, I'm pretty happy to have found http://cooperrs.de/otpauth.html.
It does one thing, and does it well. It doesn't keep trying to get me to use a service where I hand over all my 2FA secrets to some company, and whats more the developer responds pretty quickly when there are support issues (e.g. some QR codes are weird sizes and there was a trick pre-iOS8 to make them scan) or even bugs.
It does one thing, and does it well. It doesn't keep trying to get me to use a service where I hand over all my 2FA secrets to some company, and whats more the developer responds pretty quickly when there are support issues (e.g. some QR codes are weird sizes and there was a trick pre-iOS8 to make them scan) or even bugs.