Once you've located your serial number, follow these steps to activate FontLab Studio 5 on your Mac:

The most stable way to run FontLab Studio 5 is on an older, Intel-based Mac running macOS 10.14 Mojave or earlier (such as High Sierra or Sierra). Mojave was the last version of macOS to support 32-bit applications. Method 2: Virtualization

This article explores the current state of FontLab Studio 5 on macOS, the licensing hurdles you may face, and the smartest paths forward for your font design projects.