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Not very long ago you had to upload your App Store screenshots in many different resolutions for all the different iOS devices. A real pain. Fortunately, Apple realized this and simplified the screenshot upload process a lot. Now you only need to upload screenshots for the 5.5" iPhone and 12.9" iPad displays, and automatic scaling will be done for remaining devices with lower resolutions. It's recommended to grab your screenshots from a physical device, but what do you do if you don't have a 5.5" iPhone? Well, instead of buying a new device or scaling lower resolution graphics you can use the Corona Simulator to get the high resolution screenshots you're looking for. This is how I do it for my Corona SDK apps on my Windows machine, and my example assumes that your screenshots are taken in portrait mode and that your app is primarily designed for iPhone rather than iPad. You must of course also have a monitor that can handle the resolution of the screensho...

Creating an App Store gameplay preview video for your new, cool iOS game might feel like a daunting task at first. But actually it isn't that difficult once you get started thanks to a couple of free, and really powerful tools, provided by Apple. I'm a beginner myself at making videos, but following the workflow described below I managed to put together a gameplay video in just a few hours that I'm quite satisfied with. Let's get started. What you  need : iOS device Mac with OS X QuickTime Player (free) iMovie (free) The workflow: Write a short script. Just a very brief overview of the intended video, divided into a few main sections and how long to spend in each section. Keep it short, remember the 30s limit. Try to focus on what's unique for your game. After watching the trailer, a player who has never seen the game before should hopefully have at least a decent understanding of what the game is all about. Also, try to avoid explanatory texts if poss...