We're excited to announce that you can now provision the paid Professional plan of the New Relic add-on. New Relic is an advanced performance monitoring add-on that gives you detailed insights into how your application is performing on AppHarbor. In addition to the benefits of the free Standard plan, the Professional plan gets you more in-depth analysis, configurable alerts, longer data retention and many other benefits.
The plan is priced per-worker at $45 per worker per month and both web and background workers count towards the total. Remember that all charges on AppHarbor are prorated. If you only use the Professional plan for a week (or a day or an hour), you will only pay for that fraction of the total monthly plan price.
Try out the New Relic add-on on AppHarbor.