If you are looking for a permanent free solution that offers similar "shaping" capabilities, consider these alternatives: How to Sidechain with VolumeShaper 4 in Ableton Tutorial
Websites like Bedroom Producers Blog have historically hosted giveaways for free licenses, though most for version 4 are now closed. Key Features of VolumeShaper 4 Vst Plugin Volumeshaper 4 Free BETTER Download
However, you can still experience its functionality through these official channels: If you are looking for a permanent free
No, is a commercial VST plugin developed by Cableguys . It was originally released as a paid product (priced around $40) and has since been succeeded by newer versions like VolumeShaper 6 and the ShaperBox 3 bundle. Vst Plugin Volumeshaper 4 Free BETTER Download
VolumeShaper 4 revolutionized the way producers handle "sidechain" effects by using drawable volume curves instead of traditional compressors.
You can apply different volume curves to three independent frequency bands (low, mid, and high).
Cableguys provides a free demo of their plugins that is not time-limited, though it has certain restrictions like only being able to use one instance per project and not saving settings.