I can't wait for this to go live. Does anyone know how companies test their Android apps without a service like that? Things like in-app purchases, notifications and 3rd party SDKs are in my experience really hard to unit test.

Companies usually build services similar to Cloud Test Lab internally.

Facebook (which has to deal with more than 4 billion installs combined for all its apps) has written about their tooling infrastructure here: https://code.facebook.com/posts/924676474230092/mobile-perfo...

I wonder if Amazon has something up its sleeve... (EC2-esque for Android).

You can take a look at Monkop: https://www.youtube.com/watch?v=OoZJYbfWJeg

I think it might that http://appurify.com is what powers the Cloud Test Lab behind the scenes?

Yep, I think so. They were acquired a year ago.

Does this mean they will drop iOS support?

DeviceAnywhere from a decade ago but free?