Please stop any current theme or product tests and then follow the steps below to remove the app from your store:
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 on the right-hand side click on Delete. This will delete the Theme Scientist app from your store.