About Me

Donovan Harshbarger
GraphFree creator

I taught math and physics in an Indiana public high school for twenty years. I created GraphFree because I couldn’t find any other graphing program that did everything I thought math teachers needed. I used it often in my own teaching, and I wanted other teachers to benefit as well.

Now I’m a stay-at-home dad for two adorable young children, but I still like to keep this project alive for other teachers. During the quarantine of 2020-2021, I’ve given the site some big upgrades to make it more user friendly and add a few new features. And to be honest, I’m hoping the effort does bring in a little more money for the family. I want to keep it free, but any voluntary support you provide is greatly appreciated.

Contact Information

If you have any questions about the site, feel free to e-mail me at:

donovangratuitous@graphfreeostrich reference.com

To contact me by postal mail, send correspondence to:

Donovan Harshbarger, d/b/a InquiSoft
6308 Pickwick Court
Zionsville, IN, 46077