(Pronounced ex-a-ges, like Messages but replace Mess with X).
X your messages out. Forever.
Send or receive a private message in the Messages app.
Set a self-destruct time on that message.
Send a photo or a text.
Nothing is stored or saved.
Enjoy.
For people wondering how to delete Messages Apps - Go to "More", tap it, swipe to Xessages and delete it.