You should be using Hosted Graphite for Heroku Metrics
Today, Heroku is used by many developers from a wide range of small to large enterprise size companies. As you are reading this article, you yourself may also be using Heroku to build and operate apps. So, how do you monitor the apps you run on Heroku? It is seen that many people are using Heroku metrics given its standard built-in feature and it being offered for free.