Sentry is a developer tools tool for Developers, offered as freemium ($29/mo). Based in United States, founded in 2012. Popular alternatives include Dynatrace, Polylane, telemetry.dev.
About Sentry
Sentry is an application monitoring platform focused on errors and performance. It began in 2008 as an open-source project by David Cramer and is developed by Functional Software, Inc. in San Francisco. SDKs for JavaScript, Python, Java, Go, Ruby, PHP, .NET, mobile platforms and game engines capture exceptions with stack traces, breadcrumbs, user and release context, then group them into issues that can be assigned and linked to the commits that likely caused them.
Over the years Sentry has added distributed tracing, profiling, Session Replay that shows what a user did before an error, cron and uptime monitoring, release health for mobile apps, logs, and Seer, an AI agent that analyzes issues, proposes root causes and can draft code fixes. Pricing is based on event volume per product, with a free Developer plan for one user, Team and Business plans that add users, quotas, retention and SSO, and Enterprise contracts. The code is published under the Functional Source License and can be self-hosted, though most teams use the cloud service.
Sentry fits engineering teams of any size that want to know quickly when and why code breaks in production. Costs grow with traffic, so sampling and quotas should be configured early, and alert rules need tuning to avoid noise. Datadog and New Relic cover broader infrastructure observability with metrics and logs, Bugsnag and Rollbar are focused error-tracking alternatives, and LogRocket overlaps on session replay for frontend teams.
Key features of Sentry
- Error tracking with stack traces, breadcrumbs and release tracking
- Performance tracing and profiling
- Session Replay tied to errors
- Cron and uptime monitoring
- Seer AI for root cause and fix suggestions
- Suspect commits, issue ownership and alerting rules
Pros and cons
Pros
- Best developer experience for debugging errors
- SDKs for everything
- Free tier for individuals
- Replay plus errors is powerful
Cons
- Costs scale with event volume; sampling needed
- Self-hosting is heavy
- Alert noise without tuning
- Not a full infrastructure observability suite
Sentry pricing
Sentry uses a freemium model. A 14-day free trial is available.
| Plan | Price | Includes |
|---|---|---|
| Developer | $0 | 1 user, 5k errors, 5 GB logs |
| Team | $29 / mo | $26/mo billed annually; unlimited users, 50k errors |
| Business | $89 / mo | $80/mo billed annually; 50k errors, 90-day lookback |
| Enterprise | Custom | Custom quotas and support |
Source: sentry.io · checked on Oct 20, 2026
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How Sentry compares in Developer tools
- Rank by votes
- #2 / 101
- Starting price
- $29
- Free alternatives
- 23
0 votes from members
45% above the category median ($20/mo)
Free or open-source tools in Developer tools
Sentry ranks #2 of 101 developer tools tools by community votes and is priced above most tools in the category.
Common use cases
- 1Catching and triaging production exceptions in a web app
- 2Tracing slow API endpoints and database queries
- 3Mobile crash reporting with release health
- 4Monitoring cron jobs and uptime for a SaaS
Best for
Engineering teams of any size that want to know when and why code breaks.
Not ideal for
Infrastructure metrics and logs at scale (Datadog, Grafana).
Integrations
- GitHub
- GitLab
- Jira
- Linear
- Slack
- PagerDuty
- Vercel
- Datadog
- OpenTelemetry
Our take
Every production app should have Sentry or an equivalent; it is the default for good reason. Set sampling and quotas early to keep the bill predictable.
FAQ
- What is Sentry?
- Sentry is a Developer tools tool: Error and performance monitoring.
- How much does Sentry cost?
- Sentry uses a Freemium model; paid plans start at $29 per month.
- What are the best alternatives to Sentry?
- Community-listed alternatives to Sentry include Dynatrace, Polylane, telemetry.dev, Tessary.
- Does Sentry have a free trial?
- Yes, Sentry offers a 14-day free trial.
- What does Sentry integrate with?
- Sentry integrates with GitHub, GitLab, Jira, Linear, Slack, PagerDuty and more.
- Which platforms does Sentry support?
- Sentry is available on web.
- Who is Sentry for?
- Engineering teams of any size that want to know when and why code breaks.
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