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It's a split decision.
Choose Prometheus for a free, metrics-focused monitoring base with PromQL, alerting, and hundreds of integrations. Choose VictoriaMetrics if you need a broader stack for metrics, logs, and traces, or want managed cloud service starting at $200/month. Both offer free open-source options. VictoriaMetrics also offers custom-priced Enterprise support; Prometheus has no paid plan listed. VictoriaMetrics Cloud’s initial tier lists 500,000 active time series; self-hosted usage limits are not published.
01Side by side
| VictoriaMetrics | Prometheus | |
|---|---|---|
| Starting price | Free self-hosted; Cloud from $200/month | Free open-source; no paid plan listed |
| Free plan | Free forever; no enforced retention or seat limits | 100% free, Apache 2.0 licensed |
| Best for | Managed, multi-signal observability | Cloud-native application and system monitoring |
| Core strength | Metrics, logs, traces, and managed cloud | PromQL, alerting, and independent servers |
| Learning curve | Review ease score: 6/10 | Review ease score: 7/10 |
| Integrations and data | Metrics, logs, traces; OpenTelemetry compatibility | Metrics plus hundreds of integrations |
| Team and seat costs | Cloud has no per-seat fees or limits | No seat limits published |
| Support | Expert support; Enterprise pricing is custom | Support offering not specified |
VictoriaMetrics Choose VictoriaMetrics if
- Choose VictoriaMetrics if you need metrics, logs, and traces together.
- Choose VictoriaMetrics if you want managed observability starting at $200/month.
- Choose VictoriaMetrics if expert Enterprise guidance matters.
Prometheus Choose Prometheus if
- Choose Prometheus if free, open-source metrics monitoring is enough.
- Choose Prometheus if PromQL and alerting rules fit your workflow.
- Choose Prometheus if you need its hundreds of integrations.
02Pricing compared
Both products have free open-source options. Prometheus lists one plan: Open Source, free, with no usage limits published and no paid plan listed. VictoriaMetrics Open Source is also free, with no enforced retention or seat limits; its usage limits are not published. VictoriaMetrics Cloud starts at $200/month, according to the published pricing information. Its initial tier includes 500,000 active time series, 16,600 datapoints per second and 170 GB of daily read volume. It also includes $200 in credits valid for 30 days. Extra cloud storage is $0.511/GB/month and external egress is $0.09/GB. VictoriaMetrics Enterprise pricing is custom, based on active time series, ingestion rate and cluster size; a two-month trial is listed. Choose Prometheus if free is the priority. Pay for VictoriaMetrics when managed service or its wider product range justifies the bill.
03Features and depth
Prometheus is a metrics monitoring system. Its dimensional data model labels time series with metric names and key-value pairs, while PromQL supports querying and transforming them for visualizations and alerts. Alertmanager handles notifications and silencing. Prometheus also lists instrumentation libraries and hundreds of integrations, and its servers use local storage.
VictoriaMetrics covers more than metrics. Its product range includes VictoriaMetrics for metrics, VictoriaLogs for logs and VictoriaTraces for distributed traces, alongside cloud and on-premise options. The Cloud initial tier lists limits for active time series, datapoints per second, daily read volume, logs per second and spans per second. VictoriaMetrics also lists OpenTelemetry compatibility and enterprise technical, architectural and security support.
The practical difference is scope: Prometheus is a free, metrics-focused base; VictoriaMetrics can consolidate metrics, logs and traces. That broader coverage does not make a switch worthwhile by itself. Compare the product scope and cloud limits with what your current stack actually needs.
04Ease of use and learning curve
Prometheus has a concrete deployment advantage in its published feature list: its independent servers are easy to deploy as statically linked binaries. Teams still need to work with its data model and PromQL, and the published materials do not quantify the learning curve.
VictoriaMetrics offers more operating choices: free self-hosting, custom-priced Enterprise and managed Cloud. Cloud avoids self-managing the service, but its $200/month starting tier comes with published capacity limits. For self-hosted Open Source, retention and seats have no enforced limits; usage limits are not published.
For a switch, check what you need to change and what it solves. VictoriaMetrics lists migration consulting as available for Enterprise, but pricing is not published. The review scores rate both products 7.6 overall; they do not establish that either is easier for your team.
Questions people ask
What are the key differences between Grafana and Prometheus?
The published product information describes Prometheus, but does not provide details about Grafana, so it is not enough for a full comparison. It identifies Prometheus as a metrics monitoring system with PromQL, alerting rules and Alertmanager. Prometheus also lists integrations and instrumentation libraries.
How does Prometheus get metrics?
The published information says Prometheus collects metrics and is designed to discover and monitor services in cloud-native environments. It also lists official and community integrations that extract metrics from existing systems, plus instrumentation libraries for major programming languages. It does not specify a particular collection workflow.
Is Prometheus still used?
The published materials do not include adoption numbers or usage trends, so we cannot verify how widely Prometheus is used now. They describe an open-source metrics monitoring system with PromQL, alerting, instrumentation libraries and hundreds of integrations, but those details do not establish current adoption.
What is the difference between OpenTelemetry and Prometheus?
The published information describes Prometheus as a metrics monitoring system and says VictoriaMetrics is compatible with OpenTelemetry. It does not detail OpenTelemetry’s full scope or compare the two directly. On these facts alone, Prometheus is the named metrics product; the materials are insufficient for a broader technical comparison.