With DuKo students receive discounts on sustainable products in Utrecht, Nijmegen and online. Get to know great products that contribute to a better world: from clothing, to food & drinks, cosmetics, gifts, study materials and more. The app costs â?¬2. 50 a year and is exclusively for students. If you want to use the app to receive DuKo-discounts you will be asked for your student card. In the app you'll also find information on the participating stores and news on sustainability. DuKo is run nonprofit by a group of passionate students. We wish you great fun with DuKo and hope that you'll cross paths with many cool products and stores.