You can download the app from the App Store or view the “official” VoxEd store linked page here.
I confess I’m rather proud of this one. I’ve always enjoyed pixel and voxel art and I have several ideas for projects that would make use of voxels. I’d been dabbling in creating some models using some of the tools that are out there but all had oddities I found annoying. And while I’m sure you find my take on a voxel editor to have its own oddities they are, at least, oddities that work for me!
In any case I created VoxEd as a free app to scratch my own itch and serve my own needs. I wrote it ground up in SwiftUI and Metal and despite the increased complexity over SprEd found it easier to build largely because I’d learned with SprEd a good amount of what does and doesn’t work with SwiftUI and was able to easily transfer all my WebGL and OpenGL work over to Metal fairly easily.
According to its GitHub history it took me pretty much exactly 3 months of part time work from writing the first line of code to getting it into the App Store.
Its free but not open source. Currently no plans to release the source but who knows.