App not sized properly iOS 8 iPhone simulator
Solution 1:
You need to include Launch Images for all the resolutions you want to support. Default is only 640 x 960. If you include an image with the resolution of 640 x 1136 as a launch image you will support iPhone5. For iPhone6 and 6Plus include launch images in the correct size. See https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/MobileHIG/IconMatrix.html