G2 Vendor Directory

Prometheus vs. QuestDB

A side-by-side comparison based on G2 review data.

MetricPrometheus

by Prometheus Authors

QuestDB

by QuestDB

Overall rating4.54.8
Review count6035
Ease of use8.49.1
Ease of setup8.49.3
Quality of support8.19.8
Meets requirements9.09.1
NPS62.71186493.939394
Small Business33.3%68.6%
Mid-Market38.3%17.1%
Enterprise28.3%14.3%
Total page views218154
Total LLM citations1,0691,342

Prometheus

Prometheus is an open-source systems monitoring and alerting toolkit designed for reliability and scalability. It collects and stores metrics as time series data, enabling real-time monitoring of applications, systems, and services. With its powerful query language, PromQL, users can analyze and visualize data effectively. Prometheus operates independently, requiring no external dependencies, and integrates seamlessly with various service discovery mechanisms, making it ideal for dynamic environments.

Pros

  • Easy Integrations
  • Integrations
  • Alerting System
  • Real-time Monitoring
  • Monitoring
  • Speed

QuestDB

QuestDB is an open-source, SQL-first time-series database built for the most demanding workloads—from trading floors to mission control. A multi-tier design keeps hot data in native partitions and cold history in Parquet/object storage, queried via one SQL layer. Vectorized, columnar execution delivers high-throughput ingest and millisecond queries. Open formats (Parquet/Arrow) make it AI-ready and lock-in free. Deploy self-hosted or in your cloud (BYOC).

Pros