To get rid from duplicate reviews first delete the app which you don't want to use.
If problem, still not resolved check files manually and remove the app code (product.liquid)
Hi Thanks for the advice. I deleted the Shopify app but the template is still showing on my product pages. So the Shopify app is requesting users to leave a review (with nil reviews now posted) and then scrolling a little further down the page the Stamped app is visable with reviews showing.
Doesn't look good at all. How can I get rid of Shopify app completely?
Tim is here from Growave.
Usually, apps like ours have an option to remove files from merchants' themes in admin panel, thought it is a must. Therefore, the client can easily remove files from theme and uninstall the app on Shopify.
BTW, make sure to export your existing reviews before moving to the new app.