I’d recommend using Langify alongside Translate & Adapt to translate your reviews.
Langify has a feature called Custom Content which you can use to translate 3rd party app content:
https://support.langify-app.com/support/solutions/articles/11000082059-custom-content-translations
Here’s an example:
I want to translate the review body of one of my reviews which says
“Great customer service. I am very pleased. Thank you for my new products that arrived today.”
from English to German:
I’d just have to add this text to Langify → Custom → Product Pages first:
Once done I can auto-translate it by clicking on the green “auto-translate” button on the top right:
After switching the language to German my translation shows up as expected:
Please note that once you’ve added at least one custom content to e.g. Langify → Custom → Product Pages you’d have to click on the three-dot icon on the top right to add more custom content if you want to do so:
There you’ll be able to add as many custom content as once as you want:
Please note that you can auto-translate your reviews as shown above however you’d still have to manually add the custom content to Langify.
In my experience, Langify works best with Judge.me.