Homework On Web - Live Online tutoring
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.
Integral Calculator - Calculate Integral Online and Free
RealCalc Scientific Calculator - RealCalc Scientific Calculator
SnapXam - Your personal math tutor
GetBricksApp - Bricks is a note-taking web app with a built-in calculator. It can be installed as a desktop or mobile app, because of PWA technology this app built with. Which is also makes it offline available. Notes created with Bricks can be shared.