Zendesk is a customer service web-based software. It provides a good way for a team of support agents to respond to incoming requests from customers and trouble tickets. Zendesk has mobile apps that are good for checking/responding to tickets on the go.

ReviewBot integrates with Zendesk in a way that will give your team the ability to follow up with customers on reviews. Negative reviews can be treated like trouble tickets and assigned to specific agents, and reviews from the Play Store will have a generated reply link that you can use to respond to customers. The most common implementation from ReviewBot is to have less than 4 star reviews create new tickets and make sure they are reviewed.