Yeah I've also done my research and found a lot of similar stuff. The problem with this particular one is it requires Internet* to work. I don't feel good about WebRTC and having to share my public IP address for such a task.

Also, it requires you to open a webpage every time you use it. I'd really like the user experience of AirDrop that you need to do nothing to receive files. So I made LANDrop a daemon-like stuff.

* It has a mode that you can save the page offline, but that doesn't work with iOS.