FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux
Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
Glyphs - Make everything from dingbat webfonts to full-fledged text typefaces in the most Mac-like font...
Cobrowse.io - Screenshare and remote control built into Android & iOS apps
FontCreator - This professional font editor allows you to create and edit TrueType and OpenType fonts.
Samesurf - Samesurf is a patented, real time collaboration platform that enables multiple people to interact with the same online experiences in real time from any device or browser without installs or coding.