I am writing my personal statement for my college applications centered around Desmos, the online graphing calculator. However, when I was getting feedback on my first draft, it seemed to me that my reviewers had a slight misunderstanding about what Desmos actually is. They seemed to be imagining that it was like a TI-84 calculator, which is a physical calculator rather than one on the web. (I introduced it as "an online graphing calculator")
Because this is my personal statement, there is a limited amount of characters I may use and it is very important that I do not bore my audience. This is why I need to explain it in a few words or less.
How can I concisely introduce and clarify what Desmos is?
I am having trouble determining whether or not this is an appropriate/acceptable question for this stack exchange. Is there a meta post I can look at or something?