Welcome to the Rettel group's APP. The app offers you comprehensive ideas and options for everything to do with Rettel's party service. With our optional push-up message tool, you will never miss an event invitation again. In the Saar-Retti section you will find the menu for daycare centers and schools online or can be conveniently sent to your mobile phone every 14 days. Recipes, leisure tips and game ideas round off the concept for families, parents and children from.