If you're looking for alternative mastering plugins, here are a few options:

Offers multi-band control over stereo width and includes a vectorscope for phase analysis.

Some of the key features that make Ozone 5 Advanced a go-to mastering suite include:

If you need a mastering suite and have zero budget, these free plugins can achieve 80–90% of what Ozone 5 Advanced offered—without piracy.