Apple does not provide standalone installers for specific legacy versions on the App Store. Instead, the App Store automatically delivers the last compatible version for your current macOS. LOGIC PRO X 10.5 - What's New in Logic 10.5!?
Assuming you have purchased Logic Pro in the past or have an old macOS that forces the "last compatible version," follow these steps:
Logic Pro is a professional digital audio workstation (DAW) developed by Apple Inc. It is widely used by music producers, sound engineers, and musicians for music production, post-production, and live performances. The latest version, Logic Pro 10.5.1, offers a range of new features, improvements, and bug fixes. This report provides an overview of the download process, new features, system requirements, and a step-by-step guide on how to download and install Logic Pro 10.5.1.
Security researcher Tavis Ormandy noted in a 2023 thread that cracked audio plugins are the #1 vector for Mac-specific ransomware. Logic Pro 10.5.1 cracks are particularly vulnerable because they require disabling Gatekeeper .