A calculator with themes! For iPhone, iPad, and iPhone 4 with Retina Display. Features include: Portrait or landscape mode - Continuous memory - High resolution graphics for the Retina Display on iPhone 4 - Support for international number formats - Fixed decimal point (press f + any number) - Themes (press * to change) - Ten memory registers (press STO or RCL and any number key) - CLx clears the calculator window - CLa clears the window and all memory.