Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.
BirdFont - Birdfont is a free font editor which lets you create vector graphics and export TTF, OTF, EOT and...
Numi App - Numi is a beautiful text calculator for Mac.
FontCreator - This professional font editor allows you to create and edit TrueType and OpenType fonts.
Soulver 3 for Mac - A smart notepad with a built in calculator
Glyphs - Make everything from dingbat webfonts to full-fledged text typefaces in the most Mac-like font...