Microsoft's Azure Multi-Factor Authentication is the recently rebranded technology acquired with PhoneFactor in 2012. From 2018 it is no longer available as a standalone product.
Honestly, they are very similar as is much of their offerings. It really comes down to which ecosystem are you already invested in? It doesn't make a lot of sense to try and interop with every cloud vendor - pick one and use them. While there used to be substantial differences …