Q: Does this do anything that DivMagic can't do?

Way more than divmagic. I ended up returning that one. Check out the demo on his site: https://intab.io/

sorry, wrong link: https://trello.com/b/Kae3jKx1/intab-roadmap
Hi Whitney!
We'd love to add the features you want to DivMagic! We do have an editor that lets you modify design/CSS on any website just like inTab.
When you said "way more", which features were you referring to? We'd love to add those to improve your experience. Please let me know!
Hello,
it seems like InTab is no longer being developed, I'm curious if DiviMagic offers responsive layout tests and a user-friendly interface where I can easily adjust CSS styles? From what I've seen, it appears that DiviMagic primarily relies on code adjustments rather than providing a simple UI interface for CSS modifications.