RUM Cost Calculator

How the calculator works

Each vendor's estimate uses the published pricing model from the vendor's own pricing page (verified June 2026, source URLs on the methodology page). For per-session vendors, the calculator multiplies your effective session count (page views ÷ pages-per-session, times sampling rate) by the vendor's per-1K-session rate. For per-GB ingest vendors, the calculator estimates ~40MB of telemetry per 1K sessions and applies the vendor's per-GB rate. For tiered-flat vendors, the calculator picks the smallest tier that covers your session volume.

Inputs explained

• Monthly page views, the total page views captured across all pages on your site in a typical month. The calculator divides this by pages-per-session to derive a session count.
• Page views per session, average pages a visitor opens before leaving. Typical e-commerce sites run 3-5, content/blog sites run 1.5-2.5, app-style sites run 5-15.
• Session replay coverage, what fraction of sessions get a visual replay captured. 100% is rare and expensive; most teams record 5-25% of sessions or only sessions where an error occurred.
• Retention, how long the vendor stores session data. 30 days is the default; 90 days adds 20% to most bills; 13 months adds 50% or more.
• Sampling rate, what fraction of sessions are captured at all (vs not instrumented). 100% is the default for small sites; large sites typically sample 10-50%.
• Free tier only, when enabled, the calculator hides paid vendors and shows only those whose free tier covers the workload entered above.

Outputs explained

• Monthly, the calculated all-in monthly bill at the configured workload, including any add-on charges (session replay, retention surcharge).
• Annual, monthly × 12, minus the vendor's annual-commit discount where they publish one.
• Per 1K sessions, the effective rate per 1,000 sessions at the configured workload. This is the apples-to-apples comparison metric across vendors with different pricing models.
• Free tier, green badge when the configured workload fits inside the vendor's free allowance.
• Quote Only, red badge when the vendor doesn't publish prices; the calculator declines to fabricate a number and links to the vendor's contact page instead.

What the calculator does not model

The calculator is a procurement comparison aid, not a binding quote. It does not model:

• Multi-product bundles, many vendors offer 20-40% off when RUM is bundled with APM, logs, or infrastructure on a multi-year commit.
• Negotiated enterprise discounts, typical enterprise RUM contracts close 25-50% below list price for committed-spend annual deals above ~$50K.
• Egress, storage, or compute costs for self-hosted options (Grafana Faro, Elastic Browser RUM, sentry-self-hosted).
• Engineering implementation time, adding the SDK and configuring sampling/redaction is typically 1-3 weeks for a single web property.
• Ongoing maintenance, SDK upgrades, sampling tuning, alert noise reduction take 1-3 hours per engineer per quarter.

For the full ungoverned-by-marketing cost picture, read hidden RUM costs and RUM implementation cost.