.apk files available?

Our school district just bought a number of large 65" android based TV’s, Cleavertouch Plus. It has its own educational app store, but it cannot install things from the google play store. I can however install any app via usb if I have the .apk file. Are the .apk files for VEX Via and VRC Hub available anywhere?

What I generally do when I need apk files is install the apps from Google Play on my own device and then use an app like ES File Explorer to export the apk file.