lack & Grey Studios

SmartCalc is the most beautiful, intuitive calculator available for iPhone. Finally, there's a calculator that lives up to modern smart-phone design.• …

• Over 1,500 emoji, emoticons, symbols, and word art creations in a beautifully designed, system-wide keyboard for iPhone, iPad, and iPod touch• Now y …

MathKit is your all-in-one math and physics formula solver! Like your very own personal tutor, MathKit walks you through formulas step-by-step and dis …