With the admin application of the DigyFoody Open Buffet management system, it sends food to the tablets with digyfoody app installed, moving the tablets to sleep and wake-up mode alone or collectively, and sending the meal program to the tablets as a group or in groups. It uses the Google Cloud messaging service. The application alone does not work. To use digyfoody, an open buffet restaurant food name and content management system, please visit our website calculusapps.net.