Google Classroom might be a bit more popular than Respondus. We know about 1 link to it since March 2021 and only 1 link to Respondus. 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.
I've used a commercial tool. Iirc, there is a free trial and then it's not very expensive. https://web.respondus.com/he/respondus/. Source: about 2 years ago
This is enlightening. I do see they have a marketing / landing page which makes me feel there is a product charter beyond half-a-SWE: https://edu.google.com/products/classroom/. - Source: Hacker News / over 2 years ago
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