ConvertStuff 1.9 (by Hybrid Bits)
A utility primarily for unit and computer conversions.

MathLink for AppleScript 1.3 (by Uni Software Plus GmbH)
MathLink for AppleScript is a Scripting Addition (OSAX) that makesit possible to use Mathematica as a computational engine in AppleScript programs (Mathematica is a registered trademark of Wolfram Research).

Math Basics 0.1 (by Thinking Cap)
Math Basics is a simple math quiz application.

Boardfoot Calculator 1.2 (by MacWoodworking)
Boardfoot Calculator is an easy to use tool for determining material requirements of both small and large woodworking projects.

SimpleCalc 0.3 (by GBPT)
A very small and simple calculator for quick use and easy to have on the screen.