Hi, @xtra-zealous !
I'd definitely recommend checking your invoices to determine which apps you're being billed for. From there, you can follow the steps below to delete any apps that you no longer need for your business:
From your Shopify admin, go to Apps
In the row of the app that you want to uninstall, click Delete.
In the message that appears, click Delete.
You'll likely be billed once more for each of the applications you're uninstalling on your next invoice since apps run on different billing cycles than your Shopify subscription. If you have any further questions don't hesitate to reach back out to me here!