Product Hunt Reviews Widget - Embed and encourage PH reviews into your product
RightMessage - Ask the right questions, pitch the perfect offer
Reviews for iOS - Keep track of your App Store reviews
Linkiro - Increase your conversion rate! Add a call-to-action to links you share
Diffbot - Get data from web pages automatically
Rite.ly - Rite.ly is a Call-to-action (CTA) header that can be used in any page.