Company Uitgeverij Catullus created these great apps:
Fokke & Sukke, Fokke & Sukke Scheurkalender, Fokke & Sukke Swipekalender 2012, Fokke & Sukke Swipekalender 2013, Fokke & Sukke Swipekalender 2014, Fokke & Sukke Swipekalender 2015, Fokke & Sukke Swipekalender 2016, Fokke & Sukke Swipekalender 2017, Fokke & Sukke Schoolagenda, Fokke & Sukke Swipekalender 18, FokSok20, and others..
