What are some alternatives?
When comparing FontLab VI and Glyphs, you can also consider the following products
FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux
FontCreator - This professional font editor allows you to create and edit TrueType and OpenType fonts.
FontStruct - FontStruct. Build, Share, Download Fonts
BirdFont - Birdfont is a free font editor which lets you create vector graphics and export TTF, OTF, EOT and...
CompanyCam - CompanyCam is a software solution to manage field work with smart photos.
Type light - With Type light you can design, edit and convert OpenType, TrueType and PostScript fonts.