Hi there! I am talking about the free open source app that this guy developed
He developed a 2fA app that is free for personal usehttps://www.allthenticate.com/pricing
Also check out this video he made for the product. He goes into the whole history of Authentication and why he decided to develop such an app.
https://www.youtube.com/watch?v=hdidOtVfxZQ
I am thinking about trying it.
I think it is really cool but let me know your opinion on it