Calibre RUM
Calibre RUM: Detailed RUM and Core Web Vitals analysis for teams improving website performance. Ranked #42 of 42 in Synthetic Monitoring by our editors (5.3/10); pricing: 15-day trial; best for teams measuring real-user web performance.
At a glance
- Editor score5.3 / 10
- Pricing15-day trial
- Best forTeams measuring real-user web performance
- Free planNo
- Paid from$75/mo
- Founded2017 · Melbourne, Australia
- Facts checked20 Sep 2026
Where it wins
- Detailed Core Web Vitals data from real browser sessions
- Segmentation by page, device, country, browser, and navigation type
- API, CLI, webhooks, and workflow integrations
Where it doesn't
- It focuses on real-user monitoring rather than synthetic monitoring
- Paid plans start at $75 per month, with no free plan
- Website-focused setup requires installing a JavaScript snippet
Our verdict on Calibre RUM
Calibre RUM is a hosted real-user monitoring service for websites. It collects Core Web Vitals from real browser sessions and organizes results across sessions, pages, metrics, audiences, countries, devices, and browsers. Teams responsible for website performance can use element attribution for LCP, CLS, and INP, then examine which page elements contribute to user-experience problems. It is a fit for teams measuring real-user web performance, especially when field data matters more than scripted checks alone.
Pricing starts with the Starter plan at $75 per month, billed monthly. It includes Real User Monitoring, Google CrUX Core Web Vitals data, three seats, unlimited sites and URLs, and 5,000 synthetic tests per month. Team costs $150 per month and adds 10 seats plus Single Sign-On with SAML and Google. Company is listed at $1,500 per month, paid annually, with 50 seats, a security audit log, invoice payment, and high-priority support. A 15-day free trial is available. The plans use sessions as the pricing metric, while configurable sampling and retention help shape data usage.
The product’s strongest area is analysis depth: page groupings, page-level performance ranking, configurable retention, and segmentation support investigation beyond a single sitewide score. Teams can connect findings to development workflows through GitHub, Slack, Zapier, Netlify, Render, webhooks, the Node.js API, and the command-line interface. Calibre RUM should suit organizations that need detailed field performance data and workflow connectivity. Teams seeking a primarily synthetic monitoring product, mobile app monitoring, or checks without JavaScript installation should consider a different focus.
Your product? Our editors can test Calibre RUM in depth and publish a review, labelled as paid · from $149/mo →
Calibre RUM pricing
All 3 Calibre RUM plans and prices →
Calibre RUM fact sheet
| Free plan | No |
|---|---|
| Paid from | $75/mo |
| Locations | Not verified |
| Fastest schedule | Not verified |
| Browser checks | Not verified |
| API checks | Not verified |
| Transaction checks | Not verified |
| Journey checks | Not verified |
| Free trial | 15 days · no card needed |
| Deployment | Cloud, Browser extension |
| Platforms | Web |
| Compliance & security | GDPR, SSO/SAML |
| Support | Email, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 8 integrations: GitHub, Slack, Zapier, Netlify, Render, Webhooks … See all → |
| Pricing | 15-day trial (source) |
| Website | calibreapp.com |
| Facts checked | 20 Sep 2026 |
Calibre RUM integrations
Calibre RUM lists 8 integrations on its own site.
- GitHub
- Slack
- Zapier
- Netlify
- Render
- Webhooks
- Node.js API
- Command-line interface
See all Calibre RUM integrations →
Alternatives to Calibre RUM
- ChecklyBroad synthetic monitoring coverage with a free plan and paid features for growing teams.9.4
- Testable Synthetic MonitoringEvidence-rich synthetic monitoring with browser, API, infrastructure, and private-network coverage.9.2
- Site24x7 Synthetic MonitoringBroad synthetic monitoring with browser, API, private-location, and one-minute coverage.9.0
See all Calibre RUM alternatives →
Also Ranked In
Calibre RUM is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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