This is the evaluation version of our Photo Lab 1600 app. You can save the photo only once per day. If you like the app, please purchase the full version. The daily limit is to keep honest people honest. If you would rather change the iPhone date every time you want to save the photo to get around the limit, it is fine with us.rnSee the preview in the split screen, so you can compare to the original. Double tap to apply. Compatible with iOS4.