if you can export the reviews in a csv, there are apps you can use otherwise you may have to import manually.
I was hoping there would be an official way but i'm not sure there is.
another option you can use is web scraping.
All-in-one Shopify marketing app Growave is here. I hope my following instruction would help.
Btw, we replace 5 apps and offer Reviews, Wishlist, Rewards & Loyalty, Social Login and Shoppable Instagram gallery on the Shopify store at an affordable price. In order to install a free trial, please press here.
Hey @alexhy91, Yes, you can import reviews in your store in a CSV format. There are many Shopify apps available for this in Shopify app store. You can try the all-in-one Shopify app AiTrillion to import reviews and use a review feature. If you need any help with it or the setup you can contact to AiTrillion support. AiTrillion provides free app setup.
It's review feature is integrated with loyalty program, email marketing automation, push notifications, popup. You don't have to install multiple apps. It provides all marketing features in a single app.
Hope this helps!