You can downgrade to a free plan by following the steps below:
Step 1 – Login To Your Store
Log in to your Shopify dashboard using your store credentials.
Step 2 – Apps Section
From the Shopify Dashboard, go to the Apps section of the backend by clicking on Apps.
Step 3 – Find The Theme Scientist App in the List
From the apps listed in this section, find the Theme Scientist app and click on Theme Scientist.
Step 4 – Click on Help (located on top right heading)
Step 5- Find the Your Plan section.
Click on the Change Plan button and click on the Try the Free Plan button.
If you need any help with downgrading your plan, please reach out to our support team at themescientist@previewx.zendesk.com.