Heroku has integrated New Relic directly into its Ruby platform-as-a-service. If you have applications running on Heroku, you can take advantage of the combined benefits of Heroku’s ease of deployment and operation and free, one-click access to the monitoring, troubleshooting and tuning capabilities of New Relic. Visit the Heroku add-on center and choose from among two services levels — Standard or Pro — to ensure your Ruby applications are running at peak performance.

New Relic is the leading provider of application performance management tools for Ruby, Java and JRuby, PHP, .NET and Python. Our product allows you to:
Heroku is a fully-managed Ruby platform that that allows instant, provisionless deployment. Providing a clean, stable environment that actively curates each layer, Heroku eliminates concerns about server configuration and scalability. Learn more about Heroku.
Simply select New Relic from Heroku’s add-ons catalog at http://addons.heroku.com. Once selected, you can immediately begin monitoring your applications.
View a brief tour (30:00) of the addons system and get a peek at the power of New Relic.