TS by IRCAM Lab is a Plugin for Mac OS X and later Windows version will be added.
it is able to stretch audio in large amounts like 300% – the editor looks simple as you can see like a spectrum analyser.
not only stretching – it’s purpose is to make and build new sounds
Now try the formant, transient, sinus or noise sliders to sculpt your sound and you create totally original audio textures.
but it’s also to help your work can be stretched without too many artefacts (since most stretch and granular algorithms sound rather LoFi when it’s more than – say – 30%..). it’s $99 – later it will be $249.