Sentry Performance + Session Replay Pricing 2026: $0.50/1K Sessions + Gotchas

The fast facts

The pricing model

Tiered subscription with usage-based overages. Team plan starts at $26/mo; pay-as-you-go for traffic beyond included allowances.

The Sentry hybrid model

Sentry sits awkwardly between a per-session RUM vendor and an error-monitoring tool. Historically, Sentry was an error-tracking SaaS that tracked uncaught exceptions and crashes. Over the last few years it has added performance monitoring (transactions, web vitals), session replay, profiling, and cron monitoring. The pricing model reflects that evolution: a tiered subscription with separate metered allowances for each product line.

For RUM specifically, two of Sentry's product lines matter: Performance (transaction monitoring including web vitals) and Session Replay. The Team plan ($26/month annual) includes 10,000 monthly transactions and 500 monthly replays. The Business plan ($80/month annual) increases those allowances and unlocks features like SSO, custom dashboards, and longer retention.

The free tier is genuinely useful

Sentry's free tier, 5,000 errors + 10,000 transactions + 50 replays per month, is usable for pre-launch projects, hobby sites, and very small commercial workloads. At ~50 replays per month, it covers maybe 1-2 production incidents' worth of debugging. But the 5K-error allowance is generous, and the integration story (SDKs for every major framework, GitHub PR integration, alerting to Slack/PagerDuty) is mature.

Pay-as-you-go overages

Above the included allowances, Sentry charges:

• Errors: $0.026 per additional error
• Performance transactions: $0.058 per 100 transactions (roughly $5.80 per 100K)
• Session replays: $3.75 per 1,000 additional replays
• Attachments / log data: $0.50 per GB

The session replay overage is the line item to watch for RUM-heavy workloads. At 50% replay coverage on 1 million sessions per month, you would generate 500,000 replays, $1,875 in replay overages on top of the base subscription. The Business plan's higher included allowance shifts the breakeven point, but cost-conscious teams should treat replay percentage as a primary cost lever.

Retention

Sentry retention varies by data type and tier: 30 days for events on the free tier, 90 days on paid tiers. Session replay retention is shorter, typically 30 days on Team, 90 days on Business. Extended retention is an enterprise-only conversation.

How Sentry compares

• Versus Datadog RUM, Sentry's effective per-session cost is much lower at moderate replay coverage. Datadog wins if you need session replay on 100% of sessions (no overage on Datadog's bundled model).
• Versus LogRocket, LogRocket starts at $69/mo for 10K sessions (effectively $6.90/1K), about 14x more expensive per session than Sentry's $0.50/1K base rate. LogRocket is replay-first; Sentry is errors-first with replay as an add-on.
• Versus AWS CloudWatch RUM, AWS is cheaper but lacks Sentry's polished error-monitoring product and developer ergonomics.
• Versus Raygun, direct competitor on the errors + performance combo; Raygun is cheaper at high volume ($80/yr Basic) but Sentry has stronger SDK ecosystem and integrations.

When Sentry is the right choice

• You already use Sentry for error tracking and want to add performance monitoring + replay incrementally.
• You need a mature, opinionated developer experience (SDKs for every major framework, GitHub PR integration, source-map upload, release-aware alerting).
• Your replay coverage is moderate (10-30% of sessions) and you can budget around the per-replay overage.
• You want a free tier that genuinely works for pre-launch projects, not just a 30-day trial.

When Sentry is the wrong choice

• You need 100% session replay coverage at scale, the per-replay overage at $3.75/1K becomes punishing.
• You need extended retention (180+ days) without an enterprise contract.
• You want a replay-first product with rich heatmap/funnel analytics, Fullstory or LogRocket is a better fit.

For the session-replay-only category, see RUM vs session-replay-only cost. For the error-monitoring category, see RUM vs error monitoring cost.

Try it in the calculator

The RUM cost calculator includes Sentry alongside 17 other vendors. Enter your monthly page views, session replay coverage, retention, and sampling rate to see how Sentry's pricing compares head-to-head against the alternatives.

Where to go next

• Multi-vendor calculator — estimate Sentry's cost against 17 alternatives at your specific workload.
• Per-session pricing models — how Sentry's pricing model compares structurally to Datadog, Dynatrace, and Raygun.
• Quote-only vendors — the five RUM vendors that don't publish prices and the operational consequences.
• Hidden RUM costs — sampling, retention storage, replay storage, and overage gotchas across the category.
• Methodology — how we verified the Sentry pricing data shown above (verified 2026-06-16).