No. The Windows/Mac version uses a separate license file purchased from the official site. Mobile unlock keys are for Android/iOS only.
The is a separate application (or in-app purchase) that you install to verify your license. Once the Key is installed and recognized, it "unlocks" the full version of Caustic, allowing you to: Caustic Unlock Key 3.2.0 Apk
Downloading and installing the Caustic Unlock Key 3.2.0 Apk is a relatively straightforward process. Here are the steps: Caustic Unlock Key 3.2.0 Apk