You can technically enter "$0" as the price and download it legally.
If you’ve spent any significant time in After Effects, you’ve hit the "Composition Wall." You duplicate a complex comp to try a new variation, only to realize that changing a layer inside the duplicate also changes the original. This happens because After Effects duplicates the layer in your timeline, but not the composition in your project panel.
Go to aescripts.com and complete the checkout (even if for $0).
Everything You Need to Know About the True Comp Duplicator Script
Because the script is already available for $0 through official channels, there is to download it from "crack" sites or file-sharing forums. Downloading scripts from unofficial sources puts your system at risk for:

