Author of MeowCAD here.
MeowCAD won't be for everyone. I made it to lower the barrier to electronic design and sharing. It provides an easy access to create small to medium sized boards. Maybe in the future the complexity could be on par with something like KiCAD but for right now KiCAD will win out on features, stability and board size.
MeowCAD provides easy accessibility to anyone with an internet connection. This means the project is stored in the cloud but it also means you can access your project anywhere there's an internet connection. For a lot of people, not having to worry about transporting projects around, sharing them with other people and worrying that they'll get out of sync is a big win. MeowCAD also provides an easy way to share snapshots of your schematics and boards. This is especially helpful when getting help online as you can share a picture directly instead of going through the screenshot to crop to imgur dance.
MeowCAD is completely free and open source. This means you can stand up your own server or hack it for your own needs. I've also created a Docker image so that you can run it locally (find it at https://registry.hub.docker.com/u/abetusk/meowcad/
). The Docker image was meant more as a proof of concept so that people could see how to run an instance locally and hasn't focused on database persistence. I would be happy to extend this a bit if people were interested.
KiCAD is great! I love KiCAD! If people want to use KiCAD they should! If people want an easily accessible (free and open source) online tool then maybe they'll want to give MeowCAD a try. I hope that MeowCAD will provide a compliment to KiCAD, not a replacement.