BeatMark X

Automatic Music Beat Markers for Final Cut Pro X

PODcleaner

Powerful Audio Cleanup per Podcasters and Interviewers

PODcleaner Pro

The professional version of PODcleaner, with indecision ("uhm") remover and multi-track syncing

Cleanterview

A powerful tool to clean the audio track of your videos

FCPX AutoDuck

Automatic Audio Ducking for Final Cut Pro X

Seek & Replace

Tool for replacing old versions of files, pretty useful for After Effects renders or App development artworks

Normalize

Fast and *free* audio normalizer

Power Counter

The ultimate counter for iPhone