App ScreenShotMaker you can quickly create screenshots for the iOS AppStore.
Very easy to use!
Just drag and drop your iOS device screenshots.
You can also add comments.
Output image size:
iPhone(5.5 Inch) : 1242 x 2208
Screenshots other than 5.5 inches are automatically resized.
iPad : 2048 x 2732
Screenshots of size 1242 x 2208 are automatically resized.