I highly recommend Blender Guru on YouTube as one of several great places to start for anyone interested in learning Blender. He's got a couple beginner tutorials there that'll get one up and rolling in no time at all. It's well worth the effort to learn for those who have an interest in 3D graphics or game development. Having said all that, I'm always in favor of more new tools / toys appearing in this space, and I thank you for adding to the mix.
Someone saying "use" instead of "learn", to people who've never used blender, is fine. IF you've never used blender, everything in blender is hard (except maybe deleting that cube) because it's good software, with a rock solid elaborate UI that follows (and shaped) industry-conventions. This tool doesn't, it's much easier to use if you come in knowing nothing.
As-is, I can't appraise Womp3D as a Blender alternative since it requires me to create a user account. If you ever drop this requirement (or let people self-host the app) let me know and I'd be happy to compare the two and potentially even recommend it as a Blender alternative.