Plus is a monthly subscription that unlocks advanced features within the Chrome extension. Your subscription is tied to your account, enabling premium capabilities when you sign in. The extension itself can be installed and used for free; Plus adds the advanced features.
This is a recurring monthly subscription, not a one-time purchase. Activation is immediate after checkout, and premium functionality becomes available once you log in to the extension.
Purchase Note:
Your Plus subscription is active—premium features will be available after you log in inside the Chrome extension.