Im not sure if its an iOS 8.x issue or and iPhone 6/6+ issue but the app is almost impossible to use. You get message notifications you cant see or clear, when trying to chat with someone you cant see the chat unless you force a reload of previous messages, even if you delete or respond to all the messages you still have a flashing message icon as if you have unread messages,new message tags in the app never clear/update. Bottom line is the app is in need of an overhaul. With many other similar apps out there that WORK, not sure how this one will survive unless an update is eminent. If youre thinking about installing, dont. Wait and see if a new version appears to avoid the frustration.