Yeah, I find this name very confusing. I would never guess it has anything to do with teaching, but that's not the bad part. Epi is a common shortening of epidemiology. To me it screams some sort of epidemiology/public health platform. So "epihub" has a reasonable connotation that has nothing to do with their brand that they will have to actively fight.
μὴ φρόντιζε (don't worry): we have a reason! I used to teach Greek and Latin, and our very first product, Epigrammar, took its inspiration from Classical antiquity: the English word “epigram” comes from “ἐπί” (epi) and “γράφειν” (graphein) meaning “to write upon” (historically, epigrams were written upon household items such as broken pottery or sea shells). With Epigrammar, we wanted to digitize the ancient way of writing upon things, so instructors could give their best feedback once and repurpose it everywhere. Now, with Epihub, we're still focused on helping instructors (fun fact: Aristotle was a tutor to Alexander the Great), but at the same time, we also want to help people build hubs for knowledge (ergo, Epi-hub).
I will say, Epihub was really the byproduct of Epigrammar (as Mike highlighted above) and us just using the term “hub” a lot. It was hard to mispronounce, we had the .com, it felt like an homage to our previous work, and we didn’t think about it too much afterward.
I do like Teachify though. It’s a pretty great name; I can’t lie.
Even though I also think that epihub sounds like epipen or something epidemiology related (especially in the time of covid) - getting a 6 letter dot comfor a nice prononceable name is not a small feat haha. That alone is a not insignificant number of points in favor of the name.