I lost my license key. How can I retrieve it?
You should have received an email with your license key when you purchased Sketch. If you can’t find the email, you can retrieve your license key from the License Manager.
To access the License Manager you’ll need your purchase email address and access code. If you need an access code, just complete the form on this page.
If you can’t remember your purchase email address, you can find it by clicking on Sketch > About & Registration in the app.
If you need to change your purchase email address, just follow these instructions to do so.