I was about to suggest Glyphs mini on a slack channel for local designers, to an UI designer having trouble with home-made icon fonts.
He’d made the icon fon in some icon app, and he was looking to fix a path direction issue.
I checked glyphsapp.com to see if Glyphs Mini would be a good purchase to solve the problem and saw that Glyphs Mini doesn’t do WOFF2.
I recommended it anyway (with the caveat that it doesn’t do WOFF2).
I thought you’d like to know, since otherwise Mini would be a great companion app for icon font makers.