All Dropified plan subscription allows you to connect one store but you can add more stores for $10/store per month.
You can simply click on add store from Stores page.
This will open the Add Store modal that will let you select the store platform then you can just click the Continue button.
A confirmation window will ask you if you will proceed with connecting an additional store or not.
As soon as you click "Yes, Add This Store", you can follow the guide here to connect additional stores.
However, if you installed the Dropified app from the Shopify App Store, you won't be able to add more stores. It's because your subscription through Shopify only allows you to have one store which is your Shopify store itself.
In this case, you'll need to subscribe again from our website Pricing page. Use the same email address as your current subscription during registration.
Once you have a new plan subscription through our website, kindly reach out to Dropified Support Team for assistance with converting your account and cancelling the recurring app charge in Shopify.