pass track

Joins (merges) iTunes tracks, with chapters.

Track time from your desktop.

Track your favorite crypto-currency in real-time in your menubar.

Track boats and ships and follow them on a real-time map.

Track your borrowed library books.

Track 100's of equities at the touch of button.

Track and classify work time.

Track golfing performance, calculate USGA Handicap Index.

Track, visualize how your body mass fluctuates each day.

It allows applications to pass audio to other applications.