What are some alternatives?
CodeClimate - Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.
Codacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
RuboCop - A Ruby static code analyzer, based on the community Ruby style guide.
Phabricator - Phacility - Phabricator
Flow - Stop managing projects from your inbox.