Customer Review Apps that integrate with Gravity Forms

Please provide URL’s for any Add-on(s) that enable automated collection of customer reviews (star method preferred) once customer has ordered and made payment using a gravity form on my Wordpress business website. Referral(s) for QUALIFIED “developers” who can assist with integration (if necessary) are appreciated.

Anyone heard of YOTPO ( ? Can this be integrated with a gravity forms order system (NOT shopping cart) ? All info appreciated.