macOS 10.6.6 or higher. The app runs on Mojave, although not fully optimized for it (it won't be updated to 64-bit).
English, German, French, Spanish.
Labels & Addresses User's Manual
(3.1 MB in PDF format)
For OS X 10.5 users (47.8 MB)
For OS X 10.4.11 users (49.9 MB)