Please note that Soli Sandbox does not enable creating production Android apps.

Soli Sandbox is a way to connect your web prototypes to Soli interactions on Pixel 4. Create a prototype with your favorite tools, and set it in motion with Soli gestures through the Soli Sandbox app. You’ll be able to use touchless swipes, taps, and more in your own prototypes!

[1] Soli functionality only available on Pixel 4 in the US, Canada, Singapore, Australia, Taiwan, Japan and most European countries.

From version Soli Sandbox 1.2.0(34):

Soli Sandbox is now available in the following countries: Canada, Germany, Spain, Italy, and Netherlands.

All versions
November 18, 2020
September 2, 2020
June 22, 2020
June 9, 2020
May 26, 2020