1. Log in to the Shopify store that you would like to upgrade Gamify in.
2. Click on "Apps" in the left hand menu.
3. Click on "Visit the Shopify App Store" in the top right corner.
4. Search for the "Gamify - Game Maker" app and click on it.
5. Select "Add App".
6. Have a read through the access permissions for the Gamify app, and then select "Install App".
7. Choose your installation method (and have a read of the terms before you accept them if you've selected automatic).
8. Click on the green "Upgrade" button in the lower left corner.
9. Select the package you would like to upgrade to.
10. Confirm your selection.
11. You'll be taken to a new window where you can complete the purchase via Shopify - either by confirming the current card details saved by Shopify or adding another payment method.
Congratulations on upgrading your app, and happy gaming!