Google App Maker allow you to create responsive web-app fast in your company. What about create an internal challenge ?
In this post Jérémy Dessalines highlights the benefits of using Google App Maker to rapidly develop a web based game and all in a couple of lines of code:
The app benefits from Google App Maker to authenticate the user, create a responsive application that allows the visualization of good practices in the form of cards. … Access is secure and restricted to a small group of users via a Google Group.