SymCalc - Symbolic Calculator - Math toolbox for iOS. Advanced calculator features with a tape-like history, not requiring internet...
Photomath - Photomath is a mobile app that will give you the ability to test your equations through a simple calculator interface that will fully explain the solution in a step-by-step fashion. Read more about Photomath.
Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.
Mathway - Mathway is a freemium math solving app that helps you find the solutions to any math problem you can imagine.
Numi App - Numi is a beautiful text calculator for Mac.
Mathpix - Any individual who has ever gazed restlessly at a knotty condition needing an answer has longed for some sort of hatchet to slice through the issue.