Zombie Loyalists - Using Great Service to Create Rabid Fans
Product Hunt Reviews Widget - Embed and encourage PH reviews into your product
ChatWhale - Gamify your customer communication and loyalty rewards
Reviews for iOS - Keep track of your App Store reviews
Open Loyalty for Startups - Open source stack for building customer focused products
Yotpo - Yotpo is the smartest way to generate customer content, drive traffic and increase conversions.