If you've done your homework (read this entire page) and are ready to download and install Xcode, here are the instructions: Make sure you have at least the minimum required macOS for this version of Xcode. Xcode will turn the Loop 'raw' code into an iOS application and install it onto your iPhone/iPod. Xcode is a free application for Apple computers. This is a big download, so don't expected this to be fast. If your laptop goes to sleep when you close the lid or when the screen saver starts - be sure to disable the screen saver and leave the laptop open. Instead, you can simply walk away once the download starts. The good news is that you don't have to watch it. This step may take more time than the other steps, because the download takes a while.
Step 6 Enroll in Apple Developer Program.