We are sad to see you go 🙁. To unsubscribe, remove our app from the Apps section of your Shopify store, like this:
If the JS Tag/Script was manually added into your theme, then remove the script as we. The script is normally placed in your theme.liquid file right before the ending body tag </body>. If you don't recall doing so, you can go ahead and remove the app.
To improve our service and product, so your feedback is invaluable to us. Would you share any information regarding what led you to uninstall the app?
Thank you so much for your time and we hope to have you onboard again!