Download Treehouse Photo Sharing from the App Store today. br Sharing your life has never been this fun! This video shows you how to post photos, comment with text or photos, like or unlike a post... and all the fun things you can do on Treehouse. Capture moment to moment and share it with your friends on your iPhone with Treehouse. Treehouse is an iPhone app that allows you to instantly post photos and videos and share it with your friends. All without the cost of MMS.