The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Andreas Sohns:
Design Calculator combines the Normal and Scientific calculator in a clean & unique iOS design. Intelligent features and highest usability make it a truly smart experience and the perfect utility for every day use. No Advertisement: Free Calculator + friendly pricing for single features & Pro upgrade Powerful and reliable calculator engine (scientifically proven) Revolutionary marriage of innovation, lifestyle & designPRESS REVIEWS"The New Benchmark for Calculators on iPad" AppGamers"Finally a Calculator becomes Chic on iPad" BlogToGo"Practical ease married with the impressive ability to look good at the same time" ExaminerUPGRADES Pro : All Upgrades (SALE: Save 25% / Mostly Recommended) Designs : Create Unlimited Designs from your Photo Libary Scientific Mode: 39+ Advanced Scientific Functions in Portrait and Landscape Mode History Pro: Unlimited Interactive Calculation Log + Undo/Redo/Go Back Smart Menu: Edit, Print, Share or Restore Earlier Calculations AnytimeADDITIONAL INFORMATIONPlease help us improve our app at http://feedback.designcalculatorapp.comGreat! Please recommend it and rate us 5 stars!Free download http://designcalculatorapp.comThe app cant generate it's interface without access to your photo library.To change access, please open iOS system settings: Settings> Privacy> Photos> Design Calculator > "Allow".Afterwards simply select a picture from "Change background" in the App settings.Please try fully uninstalling and reinstalling it.Were ready to help at email@example.com