Catch real user errors without standing up an APM
Drop in the SDK, ship a release, and you start seeing real errors with stack traces in minutes. The free Developer tier is enough until you have meaningful user volume.
Sentry turns noisy stack traces into actionable bugs — see errors, latency spikes, and slow renders in one debugger-first dashboard.
Sentry is an application monitoring platform built around one idea: errors should be debuggable, not just visible. Originally created in 2010 as an open-source Django side project by David Cramer, it now tracks exceptions, performance, logs, and user sessions across more than 30 languages and frameworks — including JavaScript, TypeScript, React, Next.js, Node, Python, Django, Flask, FastAPI, Java, Kotlin, Spring, Go, Ruby on Rails, .NET, Swift, Android, React Native, Flutter, PHP, and Rust.
What separates Sentry from generic log aggregators is its context. When an exception fires, Sentry captures the full stack trace, the local variables, the git commit, the release version, the user's browser, the slow DB query upstream, and — if you enable it — a video-like replay of the moments leading up to the crash. It's an opinionated product for the on-call engineer, not a SIEM for the security team.
Stack traces point to the exact line and frame. Source maps, suspect commits, and "who deployed this" are one click away. The breadcrumb timeline reconstructs user clicks, network calls, and console output leading to the error.
Sentry's AI reads the stack trace, opens the relevant files in your connected GitHub repo, and drafts a PR with a proposed patch. It won't ship code for you, but it eliminates the 20-minute "where do I even start" step.
Pixel-accurate, scrubbable replays of real user sessions on web (and a mobile equivalent) with full error and rage-click context. Replays are sampled, not full-fidelity, and PII can be masked at the SDK level.
Distributed tracing across services, plus transaction summaries for slow renders, slow DB queries, N+1 detection, and the exact span that killed your p95 latency.
Structured logs finally live inside Sentry, so you can jump from a slow transaction to the underlying log line without opening a second tool.
Crash-free session rates, regression alerts the moment a release increases error volume, and integrations with Slack, PagerDuty, Linear, Jira, GitHub Actions, and Opsgenie.
Sentry prices in errors, transactions (spans), and replays — with separate volume allowances for logs. Always confirm current rates on sentry.io/pricing, but the published tier shape is stable:
Overage is billed predictably per 1K events. Hidden costs to watch: replay volume scales linearly with traffic, and the AI Autofix feature has its own included allowance before metered charges kick in.
| Capability | Sentry | Datadog APM | Rollbar | Bugsnag |
|---|---|---|---|---|
| Primary focus | Errors & APM, debugger-first | Full-stack observability | Error tracking | Mobile-first errors |
| Session Replay | Yes (web + mobile) | Yes (web only in core) | No | Limited |
| AI fix suggestions | Yes (Autofix PRs) | Watchdog (anomaly only) | No | No |
| Free tier usefulness | High (5K errors/mo) | Very limited (14 days) | Medium (5K/mo) | Medium (5K/mo) |
| Self-hosted option | Yes (sentry.io/self-hosted) | No | No | No |
| Typical entry price | ~$26/mo (Team) | ~$15/host/mo (APM only) | ~$25/mo (Essentials) | ~$59/mo (Plus) |
| Best for | Engineering teams of 2–500 | Large infra/SRE orgs | Small backend teams | Mobile-heavy teams |
Choose Datadog if you need logs + infrastructure + APM in one bill and you're already paying them. Choose Rollbar if you only want lightweight error tracking on a backend service and don't need replay or tracing. Choose Bugsnag if you ship native mobile apps and care most about crash stability scores.
Sign up at sentry.io, pick your platform (Next.js, Django, etc.), and Sentry will generate a DSN — a URL your SDK sends events to.
Add @sentry/nextjs, sentry-sdk/django, sentry-sdk/fastapi, or the equivalent to your dependency file. Wrap your app entry point with Sentry.init() and you're collecting.
Run sentry-cli or the Sentry webpack/Vite plugin in CI so that minified stack traces resolve to real lines. Tag the release with your git SHA.
Link GitHub, GitLab, or Bitbucket for suspect commits and Autofix PRs. Connect Slack or PagerDuty for alerts. Add Linear or Jira to create issues from groups.
Enable Session Replay (with PII masking) and a sample rate for performance transactions. Watch your first slow database query surface within hours.
Yes — the Developer plan stays free indefinitely with 5,000 errors, 10,000 performance transactions, 50 replays, and 5 GB of logs per month. There is no forced credit card and no time-limited trial.
You pick a tier with included event volumes and pay a metered overage per 1,000 events above that. The Team tier is roughly $26/mo to start and the Business tier roughly $80/mo — confirm exact current numbers on sentry.io/pricing before you sign anything.
Yes. Sentry has first-party SDKs for Swift, Objective-C, Android (Kotlin/Java), React Native, Flutter, Unity, and Xamarin. Mobile Replay and release health (crash-free sessions, ANR tracking) are production-grade.
Sentry is SOC 2 Type II, ISO 27001, and GDPR compliant. Higher tiers add SAML SSO, SCIM, and a Data Privacy & Security add-on for HIPAA and BAA-eligible workloads. You should still mask PII at the SDK or via the beforeSend hook.
Yes. The self-hosted edition is published under the FSL (Functional Source License) on GitHub. It works, but expect real ops effort — it's a Django + Kafka + ClickHouse stack, not a single Docker image.
Sentry Autofix, rolled out in 2024 and expanded through 2025, reads the stack trace, opens your connected GitHub repository, and drafts a pull request with a proposed fix. It is gated by a separate AI-events allowance on paid plans.
Sentry is not a log aggregator. It captures structured exception and performance events with deep context. Pair it with a log tool if you need full-text log search, or use the new Sentry Logs product for a single-pane experience.
Sentry has earned its place as the default error-monitoring tool for a reason: it respects how engineers actually debug. Source-mapped stack traces, suspect commits, replay, traces, and now AI-drafted fixes are not separate products — they're one workflow. The free tier is generous, the Team and Business pricing is fair for what you get, and the self-hosted option exists when compliance demands it.
Skip it only if you already live inside a full observability suite like Datadog or New Relic, or if your real need is uptime monitoring rather than code-level debugging. For everyone else shipping production code in 2026, Sentry is an easy buy.
Spin up a project in minutes, install an SDK, and watch your first real stack trace land before lunch. No credit card required.
Get started with Sentry →Drop in the SDK, ship a release, and you start seeing real errors with stack traces in minutes. The free Developer tier is enough until you have meaningful user volume.
Release health, suspect commits, and code owners route a new error to the right engineer automatically. Mean time to fix drops by a noticeable amount in the first week.
Session Replay reproduces the bug in the engineer\u0027s screen — clicks, network calls, console logs — without asking the user to do anything. Tickets close faster and with less friction.
Distributed tracing across services and the integrated profiler highlight the actual slow function or query, not a generic latency graph.
Bonus credits redeemable on partner tooling.
We re-verify the offer every quarter so it never goes stale.
Hit the button on this page — opens the partner site in a new tab.
Check your investor or accelerator benefits portal for the Sentry partner code. Y Combinator, Sequoia, and most Tier 1 VCs have codes available.
Renewals stay at the same rate — verified by us, not the vendor.
| Feature | Sentry | Datadog | New Relic | Fullstory |
|---|---|---|---|---|
| Free trial | 14 days | 7 days | 30 days | — |
| Cheapest paid plan | $0/mo | $15/mo | $25/mo | $49/mo |
| Annual discount | Up to 25% | 10% | 15% | Negotiable |
| Refund window | 30 days | 14 days | 60 days | Pro-rated |
| Setup time | < 1 hour | 1 day | < 1 day | Concierge |
| Best for | Founders | SMB ops | Enterprise | Agencies |
“Essential for production apps”
“Cuts our debugging time in half”
“Best-in-class error monitoring”
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