Buoni Sconto Amazon Gratis is a Chrome add-on developed by Digital Saving. It is a free program in the Browsers category, specifically under Add-ons & Tools. The add-on offers users the chance to win a free Amazon voucher every month through a lottery system.

To participate in the lottery, users need to click on the add-on icon, login, and obtain their unique ID. The add-on also encourages users to stay updated by following their social media pages.

The add-on claims that it can offer free vouchers by referring users to Amazon products using a specific tag in the product links. For more information on the participant drawings, users can click on the "estrazione" button in the add-on or contact the developer through their official Facebook page.

Please note that as a software reviewer, I am not able to provide any personal opinions or contact information in the review.