Haha offers a unique approach to sending messages to friends and family via the push notification system. The app is really simple as there is only really one feature. You select a laugh from the list (tapping on one will play the laugh and give you a funny animation), and choose a friend to send it to. When you receive a “laugh” from a friend, the notification sound will be the laugh your friend chose to send. This can be quite amusing (and embarrassing) especially when you receive a laugh in a public place. The app is available on iOS and Android.