Sentry is the most widely used error tracking and performance monitoring platform for web and mobile apps — stack traces, release tracking, session replay and tracing in one SDK. Here's the pricing, the free tier, and how to get started.
| Plan | Price | Included |
|---|---|---|
| Developer free tier | $0 | 5,000 errors, 10,000 spans, 50 replays/mo, 1 user |
| Team | from ~$26/mo | 50,000 errors + usage-based overage, unlimited seats |
| Business | from ~$80/mo | same volumes as Team + advanced insights, SSO |
| Enterprise | custom | volume pricing, SLA, dedicated support |
Sentry's Developer plan is free for a single user and includes 5,000 error events, 10,000 trace spans and 50 session replays per month — plenty for a solo project or early-stage app to get real crash visibility from day one. The moment you need more than one team member or start exceeding those volumes, you move to the usage-based Team plan.
1. Sign up at sentry.io.
2. Create a project and pick your platform (JavaScript, Python, React Native, etc.) — Sentry generates SDK install instructions automatically.
3. Copy the DSN shown on the project onboarding page — this is the endpoint your SDK sends events to, not a secret credential.
4. For the separate REST API (querying issues programmatically), go to Settings → Auth Tokens → Create New Token and scope it to only the permissions you need.
Minimal JavaScript SDK init:
Bugsnag (now part of SmartBear) has a comparable free tier and simpler per-seat-lite pricing for small teams. Rollbar undercuts Sentry on price at low volume but has a smaller ecosystem of framework integrations. Self-hosted Sentry (open source) is free of usage fees but shifts the cost to running and maintaining the infrastructure yourself — worth it only past a certain event volume. For product analytics rather than error tracking, see PostHog.
Yes — the Developer plan is free for one user with 5,000 errors, 10,000 spans and 50 replays per month.
Create a project at sentry.io, pick your platform, and copy the DSN from the onboarding screen — paste it into your SDK's init call.
Base plans are cheap, but on-demand overage for errors, spans and replays beyond your included volume adds up fast on high-traffic apps — budget for overage, not just the base plan price.
Both have similar free tiers. At paid tiers the exact cost depends on your error/span volume mix — model your real traffic on each vendor's calculator before committing.
Not affiliated with Sentry. Prices are reference estimates — always verify on the official pricing page.