

PRTG Network Monitor and OpenNMS operate in the network monitoring domain. PRTG has an edge in user satisfaction due to its pricing and support, while OpenNMS stands out for its extensive features often deemed worth the cost.
Features: PRTG Network Monitor offers versatile monitoring, flexible configuration, and real-time alerts. Its intuitive setup and extensive sensor support are key benefits. OpenNMS provides a wide range of functionalities including service assurance and detailed performance monitoring, known for scalability and open-source adaptability.
Ease of Deployment and Customer Service: PRTG is characterized by a fast deployment process and comprehensive support services, easing adaptation for network administrators. OpenNMS benefits from a dedicated community and is backed by an open-source framework, providing flexibility despite its complex setup.
Pricing and ROI: PRTG offers a clear pricing structure with scalable licensing, starting at a low entry cost with predictable ROI due to easy maintenance. As an open-source solution, OpenNMS has a lower initial cost but may require significant investment in configuration and support, with its ROI driven by long-term customization and reduced vendor dependency.
| Product | Market Share (%) |
|---|---|
| PRTG Network Monitor | 3.5% |
| OpenNMS | 1.3% |
| Other | 95.2% |

| Company Size | Count |
|---|---|
| Small Business | 59 |
| Midsize Enterprise | 19 |
| Large Enterprise | 46 |
OpenNMS provides a highly reliable, scalable and comprehensive fault, performance and traffic monitoring solution that easily integrates with business applications and workflows to monitor and visualize everything in a network. The OpenNMS platform monitors some of the largest networks in existence, covering the healthcare, technology, finance, government, education, retail and industrial sectors, many with tens of thousands of networked devices.
PRTG Network Monitor runs on a Windows machine within your network, collecting various statistics from the machines, software, and devices which you designate. PRTG comes with an easy-to-use web interface with point-and-click configuration. You can easily share data from it with non-technical colleagues and customers, including via live graphs and custom reports. This will let you plan for network expansion, see what applications are using most of your connection, and make sure that no one is hogging the entire network just to torrent videos.
To monitor a large IT environment, it's important to be able to scale PRTG up. Paessler PRTG Enterprise Monitor includes all the proven capabilities of PRTG Network Monitor, which are enhanced by exclusive ITOps Board for a service-oriented, central overview of multiple PRTG servers.
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