GSAK Krefeld

Krefeld picobello.

kontrast gsak app 03


GSAK is responsible for keeping the Lower Rhine town of Krefeld clean – with services ranging from waste removal and street-cleaning to the collection of recyclables and clearing the streets of snow and ice in winter. As a special service for the residents of the city, the GSAK wants to create a mobile app for them. Kontrast is assigned with the conception and implementation of the app.


We develop a mobile app that is designed for both iOS and Android operating systems, with a link to the existing backend systems of GSAK. Thanks to this interface there is no additional administration work necessary. The app offers a wealth of up-to-the minute information and features, such as a waste pick-up calendar with a reminder function, a rubbish ABC, contact options and the locations of glass containers, recycling centres and much more.


The GSAK is extremely satisfied with the result. The company demonstrates its clear service orientation and proves to the public that its spectrum of services is state-of-the-art.