Updated: Aug 21, 2019
Google just launched this feature. Just like popsicle sticks, but from your phone!
1. Go to your classroom 2. Select "people" 3. Select the square icon in the top right (see image below)
FYI: This is currently only available on Android. Just click next (you can mark "call later" or "absent" if needed)
There are a ton of online apps that select names randomly, but this one is nice since all your names are already in the system.
That means NO EXTRA WORK - Gotta Love that!