This feature is only available in Essential plan and Premium plan.
There is a button to turn on or off this option which allows you're able to translate the language of frontend app's content such as widgets, review box, offer box, notification bar, etc.
Please take a look at below for more useful benefits that this function brings out:
You could easily translate all contents on the review box of Review apps such as Alireviews, Judge.me, Stamped.io etc as this article.
Help you translate all contents on Page Builder apps such as Pagefly, Shogun, Gempages, Zipify, etc quickly. Please visit here for more details.
Also support to translate marketing front-end apps such as Sales Pop up‑Social Proof, Free Shipping Bar, Quick Announcement Bar smoothly. More details can be found here.
Hope this helps you much.
Should you need further support, please feel free to contact us via live chat or email us at firstname.lastname@example.org