Git Butler is IFTTT for GitHub. Using a simple drag and drop interface, anyone can automate GitHub pull requests and issue workflows. Git Butler helps engineering leads and project managers save time, reduce mistakes, and enforce company policies.
Mergify is an automation service that merges GitHub pull request automatically. Defines your rules, and as soon as your code is ready to be merged, it'll be by Mergify. No need to do that manually anymore.
SideCI is a GitHub integrated automated code review tool which empowers development teams by increasing code review efficiency and enabling them to deliver products with confidence.