Datadog is a monitoring service for cloud-scale applications, bringing together data from servers, databases, tools, and services to present a unified view of an entire stack. Developed by Datadog Inc
License: Freemium
Datadog is a powerful, comprehensive monitoring solution with real-time capabilities and extensive integrations, making it suitable for larger teams and complex environments. In contrast, Cacti is an open-source tool that is lightweight and customizable, making it ideal for basic monitoring needs but lacking some advanced features.