One really frustrating thing about recent versions of the iOS app is that it uploads the full size version of the image. A few versions ago, there was a setting for limiting the size of images, which helped reduce bloat on your server. I personally don't want want or need to upload an 8MP photo: a 1000px wide image will do just fine. I read somewhere that they rewrite some code which meant temporarily removing that feature and they plan to bring it back, but that was many months ago now