Simple calculator is a calculator app that acts just like how a real calculator would and provides basic functions for both trigonometry and algebra. Do basic trigonometry with Sin Cos Tan & the shift key. Easily view history & memory registers of previous calculations. Change the entire keypad placement of your calculator app as well as choose from a variety of background colors to match with your mobile device! Features: - Math calculator for school & work - Basic trigonometry & algebra - Calculator app with Key mapping - Change face-plate colors as well as button colors to match your device - Calculate hypotenuse, adjacent & opposite sides using Sin, Cos, Tan - Geometry calculator - School calculator - View history & memory within the math calculator - Simple engineering calculator If your looking for a free calculator with basic algebra & trigonometric functions then this app is for you!