Graphite

vs

Rollbar

Prometheus is a Cloud Native Computing Foundation project for systems and service monitoring. With Prometheus you can collect metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts when specified conditions are observed. Prometheus include features like multi-dimensional data models. PromQL, a powerful and flexible query language to leverage this dimensionality. No dependency on distributed storage. An HTTP pull model for time series collection  and much more.

Datadog is a SaaS-based monitoring service for cloud-scale applications, providing monitoring of servers, databases, tools, and services, through a unique data analytics interface. With Datadog dog you can spot problems in your applications faster, and move quickly to fix it.

As the world's most popular free and open source technology for visualizing metrics, Graphana makes it easy to create a interactive dashboard for data monitoring. Grafana's designed from the ground-up for analyzing and visualizing metrics such as system CPU, memory, disk and I/O utilization. All metrics provided by connected data sources and applications can be visualized and monitored though charts, graphs, and alerts. You can also extend the core functionality of Graphana through a built-in plug-in system. Popular companies and applications like Uber, Robinhood, Nubank and others trust Graphana and its real-time visualization and monitoring capabilities.

Raygun is an application monitoring and performance insight tool that helps you and your team to proactively find, diagnose and fix software errors and performance problems. Raygun is trusted by thousands of innovative organizations that use the tool to ship better experiences to their customers.

Over 1 million developers across 60,000 organization use Sentry to diagnose, fix, and optimize the performance of their code. Sentry is a commerical application monitoring platform that allow them to ship better software faster. 

Airbrake is a web-based error monitoring and performance insight tool for you entire application stack. With Airbreak, developers and teams can fearlessly push their deployments to production, faster. Airbrake notifiers are available for every major programming language and framework and install in minutes. Which allow you to spend less time tracking down bugs and more time to develop an application that your customers will enjoy.