Some users are reporting issues with the latest iOS update (1.8888) where todays training freezes or locks up. We're looking into this today and will get a fix out as soon as possible. I've turned auto-updates off, but you still may see it on the app store as an available update. I would recommend not updating to this version until we get a fix in for this. Unfortunately we can't revert to the previous version (apple doesn't allow it).