The Club eSignature App for Commerce7 is only available to use in Commerce7. You can install the app in the Apps & Extensions section of the Commerce7 admin page. After installing, you can try the app in demo mode for 3 days. All signature request sent while in demo mode are not legally binding and are stamped with a watermark. You will receive an email with a link to set up a form of payment. Once you complete this, you use the app in live mode.