Microsoft Visual Studio might be a bit more popular than On Lisp. We know about 1 link to it since March 2021 and only 1 link to On Lisp. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Some info can be found here: http://paulgraham.com/onlisp.html. Source: over 2 years ago
While the editor seems to old fashioned there isn't anything particularly wrong in using it for learning. Alternatively you can propose to your teacher about https://visualstudio.microsoft.com/vs/express/ . IMO editor is not a big factor when we are talking about high school learning. Source: about 3 years ago
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