Math and geometry software to create instructional videos I am looking into starting an amateur project for online tutoring. I need a math/geometry program that I can use to create shapes, graph functions, and create animation. I know of many types of software (such as geogebra) but they have restrictions for commercial use. In other words, I can't use the material or features (even screenshots) to gain a profit. Does anyone know of any programs/ software that I can use for my project?
Note: I don't mind software or programs that I can purchase for a one time fee.

You can take a look at GNU Dr. Geo a free software of mine, there is no commercial limitation and you can even redistribute it along your work.
You can do classic interactive geometry with:

Or you can use its programming features to design very original sketches:

More over, it is very easy to modify Dr. Geo from itself, in case of need!
