If you run into compatibility or installation errors:
The only legitimate way to download a free, compatible version is through your existing Apple ID purchase history. The standard App Store "Get" button will often block you with an "Incompatible" error. Garageband For Catalina 10.15.7 -FREE- Download
This guide will walk you through everything you need to know about getting GarageBand for Catalina 10.15.7 , including troubleshooting, system requirements, and hidden features you might have missed. If you run into compatibility or installation errors: