Quaver is a musical calculator and look-up tool for recording engineers and composers. It can calculate the delay times and oscillator frequencies that match a given tempo to help keep things in sync. Its pitch tool can tell you the fundamental frequency of any note in the MIDI range -- or perform the reverse calculation. Finally, the scale tool can tell you the notes that make up a given scale and draw the key signature.
Software to perform basic operations on video timings
App that allows you to collect and record data on your pets.
Bushnell Neo Sync - The smallest, most compact, golf GPS unit available.
It creates synchronized lyrics on the Mac to export to the iPod and iTunes.
An app to help students practice derivations in the typed lambda calculus.