Installing Nostradamus is a simple and straightforward process. Simply follow these steps:
Note: You can't use an email that is already used in another Nostradamus account
Log in to the Shopify App Store.
Find the Nostradamus app in the search box or simply click this link.
On the app listing page, click Add app. You will be redirected to your Shopify admin.
In your Shopify admin, to authorize the use of the app, click Install app.
After Nostradamus is installed, you can view and use it from the Apps page in your Shopify admin.