A POWR app requires two things to load on your site:
- The powr.js script installed to your website head
- The powr HTML div that contains the details about your specific app instance
When uninstalling a POWR app from the Shopify Apps admin, only the powr.js script is removed.
If you still have other POWR apps installed on your site, the app you uninstalled may still show up on your page because both the HTML div and the powr.js script are still present on your site.
To remove the HTML div from your site after uninstalling, please follow the "Manual Install" instructions in this link.