Yep, I bought an iFi Zen Stream and really like it. I know some had connection issues, but not me, it’s worked flawlessly. The app is pretty basic, but does what it does well, in a utilitarian way.
For me, who has a DAC, and uses external drives as my ‘server’, all I needed was a streamer only that sounded good, and the iFi does.
Highly recommended.
And yes, it has a USB out option to my DAC, which I use.