Math Keyboard is described as 'This app allows you to easily type mathematical expressions to your iPhone or iPad. Store your most used expressions to bookmarks and share them, edit them or PRINT them' and is an app in the Education & Reference category. There are three alternatives to Math Keyboard for iPhone and iPad. The best alternative is Nuten — The Math and Science Keyboard, which is free. Other great apps like Math Keyboard are The Math Keyboard (Paid) and SciKey (Free).
Quickly create equations and share them using your favorite apps. It’s fun and highly educational. You can create and save your equations for later reference. From algebra, geometry, trigonometry and calculus to physics and chemistry, Nuten covers it all.
SciKey is a Scientific Keyboard that brings you the essential scientific characters for your iPad, iPhone, and iPod touch. Fully customizable, with more than 3,000 characters to choose from, to build your perfect keyboard (requires in-app purchase).