Four orientations of screen, Four Calculators! ★★★ Introductory Sale Price! ★★★ An ultimate and polished design All-In-One calculator for iPhone/iPod touch. Absolutely different from other calculators you see in App Store. Yes, it's an All IN ONE calculator. Just rotate your device and you will get four calculators: - Standard - Scientific - Programmer - Statistics Other features: - keyboard sound & mute option. - copy & paste function. - Save status on exit. - Big buttons, easy to use. App info is currently processing and/or the app is not yet fully available for sale on the US App Store.