SymCalc - Symbolic Calculator - Math toolbox for iOS. Advanced calculator features with a tape-like history, not requiring internet...
Wyzant - Learn on your terms from an expert tutor. Private, 1–on–1 lessons with the expert instructor of your choice.
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.
Varsity Tutors - Award-Winning Tutoring & Test Prep In 2,500+ Subjects
Numi App - Numi is a beautiful text calculator for Mac.
TutorMe - Connect with a high-quality tutor in under 30 seconds