# How can I register my device with a license key?

**URL:** https://www.sketch.com/support/mac-only-licenses/register-a-device/ | **Last updated:** 2025-05-21

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> **Note:** Please note that you cannot use your Mac-only license key to register the Mac app’s App Store version.

The steps to register the Mac app with a license key are:

1. If your license is active, visit our [release page](/releases/mac/) and download your preferred version of our Mac app onto the device.
- If your license has expired, start by accessing the [License Manager](/license/admin/) and check the version under **Download Sketch**.

1. Once the download is complete, install the app by dragging the Sketch icon to the **Applications** folder.
1. Once installed, the next step will depend on the version you choose, begin by launching the Mac App and then:

- **Sketch Athens (2025.1) or newer**. Click on the License Key button  in the top-right corner. Type in your license key (starts with SK3) and click the Register License button.

    ![A video that shows how to change the color profile of an existing document](https://cdn.sketch.com/support/general/sketch-athens@2x.png)

- **Sketch versions 100 and 101**. Click on **Enter Your License Key** option at the bottom. Type in your license key (starts with SK3) and click on the **Continue** button.

    ![A video that shows how to change the color profile of an existing document](https://cdn.sketch.com/support/general/sketch-101@2x.png)

- **Sketch versions 72 to 99**. Click on the **Have a License?** button located in the top right corner. Type in your license key (starts with SK3) and click on the **Register** button.

    ![A video that shows how to change the color profile of an existing document](https://cdn.sketch.com/support/general/sketch-72-100@2x.png)

- **Sketch versions 56 to 71**. Choose the **Personal License** tab, type in your License Key number into the pop-up, and select **Register**. Alternatively, you can launch the Mac app and link it to your license by selecting **Sketch > Preferences > Account > Register** from the menu bar and inserting your license key.

    ![A video that shows how to change the color profile of an existing document](https://cdn.sketch.com/support/general/sketch-56-71@2x.png)

- **Sketch version 55 or earlier**. Type in your License Key number, and select **Register**. Alternatively, you can choose **Sketch > About & Registration > Register** from the menu bar and insert your license key.

    ![A video that shows how to change the color profile of an existing document](https://cdn.sketch.com/support/general/sketch-55@2x.png)

> **Note:** If you used Sketch with an active subscription (or trial), you must Sign Out of the Mac app before entering your license key. Open the Mac app, click on **Sketch** > **Settings** > **Account**, and then click on **Sign** **Out**.