Many customers have come to us to ask for integration with GemPages, but official answer will be not yet.
At the moment, our app - Ali Reviews - is NOT compatible with GemPages page builder app. The code will not work properly and the reviews will be disappeared whenever you have done changing anything on GemPages app.
This issue is well acknowledged, and we are in an internal discussion with GemPages to find the solution for this issue.
As an alternative solution, we highly recommend you to use PageFly Advanced Page Builder as the best page builder app on Shopify since our Ali Reviews has officially integrated with.
You can consider to try it FOR FREE with 30 day-trial, and we believe you will love it.
You also can take a look about PageFly app from this YouTube video: https://www.youtube.com/watch?v=dfTLnBzj1uw
About how to integrate Ali Reviews with PageFly, please refer to this article
Should you need further support, please feel free to contact us via live chat or email us at firstname.lastname@example.org