Here is the App Store link to the Toybox app:

https://itunes.apple.com/us/app/osmo-numbers-toybox/id1326405743?mt=8

Here's the Amazon link to the Toybox app for Fire devices:

https://www.amazon.com/Osmo-Numbers-Toybox/dp/B07PVZK8F5/

Here's the App Store link to the Genius Kit bonus bundle (including two games, Osmo Numbers Toybox and Osmo Words Explorers):

https://itunes.apple.com/us/app-bundle/genius-kit-bonus-bundle/id1449645251

The game is available in all geographic locations on both the App Store and Amazon and works on all devices that Osmo supports except iPhones.

Note that it is $9.99 USD, and requires the Osmo Words game pieces, the Osmo Number tiles, and the Osmo iPad or Fire base to play (it doesn't currently work with iPhones).