Observability & APM · Functional Software, Inc. (Sentry)

Sentry

Application error and performance monitoring focused on developer-facing crash reports, tracing and session replay.

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Sentry is developer-centric application monitoring: it captures exceptions and stack traces with full context (release, user, breadcrumbs), and has grown to include distributed tracing, performance monitoring, session replay, and cron/uptime checks. It is aimed squarely at the engineer fixing the bug rather than an ops team watching infrastructure, with source-map-aware stack traces and tight release/CI integration. It offers a source-available self-hosted distribution alongside its primary SaaS, and prices around a prepaid-quota model per product (errors, spans, log GB, replays) rather than per host, so cost tracks usage of each feature independently.

At a glance

Vendor Functional Software, Inc. (Sentry)
Pricing model Free tier + paid plans
Free tier Yes
Deployment Cloud, Self-hosted
Open source No
Best for Application engineering teams who want fast, actionable error and performance debugging tied to code and releases.

Pricing

Free for one user with a small monthly quota; paid plans prepay a quota of errors/spans/logs/replays and charge overage per unit.

Plan Price Notes
Developer $0 1 user; 5k errors, 5GB logs, 5M spans, 50 replays/month
Team $26/month billed annually; unlimited users, 50k errors, 5GB logs, 5M spans
Business $80/month billed annually; adds unlimited dashboards and advanced quota management
Enterprise custom technical account manager and custom data allocations

Prices read from the vendor's own page on September 21, 2026. Vendors change prices; check the source before you budget.

Features

  • Exception capture with source-map-resolved stack traces
  • Distributed tracing across frontend and backend
  • Session replay tied to specific errors
  • Release health and regression detection
  • Cron and uptime monitoring
  • Continuous profiling
  • Self-hosted, source-available deployment option

Integrations

Profile last reviewed September 21, 2026

Alternatives

Honeycomb Observability platform built around high-cardinality event querying for debugging production issues, priced per event volume. Datadog Cloud monitoring platform unifying infrastructure metrics, APM, logs, and RUM in one billed-by-the-part SaaS. SigNoz Open-source, OpenTelemetry-native observability platform combining metrics, traces and logs on ClickHouse.

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Terms to know

Data observability Continuous automated monitoring of pipelines and datasets to catch freshness, volume and quality problems early. Anomaly detection Identifying data points or patterns that deviate significantly from expected or normal behavior. Session replay A reconstructed playback of one visitor's clicks, cursor movement and scrolling on a page, captured via browser events. Distributed tracing Following a single request across multiple services in a distributed system to see where time was spent or an error occurred.

Related guides

How to choose an observability platform Choose an APM/observability platform by how it prices telemetry, whether it auto-instruments or asks you to, and how it correlates signals into a root cause.