Company Wilfred Kluft created these great apps:
Solo, Fragment, Leucos, LeucosPH, ColoSolo Man, ColoSolo Box, ColoSolo Fly, ColoSolo Geo, ColoSolo Dome, ColoSolo Christmas, ColoSolo Calendar, ColoSolo Man II XL, ColoSoloBook, Gitaarles, Gitaarles LH, nooToon, and others..