Google App Streaming is now live in the Android Google App search results.
You can preview apps directly from the search results before downloading them.
In November 2015, Google prototyped app streaming on a few select apps.
It now seems to be available for many apps in the Google mobile search results.
The same requirements apply: You must be running Android L or greater and must be on WiFi when you do your search within the Google Search App.
Then, if you see an app come up, it may have a button next to the green “Install” button that says, “Try Now.”
When you click on the “Try Now” button, the app streaming happens right on your device — in real time.
App streaming lets you try an app without installing the app to your device.