Calibre RUM vs Supercheck
Calibre RUM
calibreapp.comSupercheck
supercheck.ioSide by side
| Figure | Calibre RUM | Supercheck |
|---|---|---|
| Price from | $75/mo | — |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 0 |
| Spec score · Synthetic Monitoring | 8.2 (#12) | 7.3 (#30) |
| Integrations | Calibre lists integrations including GitHub, Slack, Zapier, Netlify, Render, webhooks, a Node.js API, and a command-line interface. | Read-only connectors include Prometheus, Grafana, AWS CloudWatch, Datadog, Loki, Elasticsearch/OpenSearch, Grafana Tempo, Kubernetes, Sentry, GitHub, GitLab, PagerDuty, and Opsgenie. |
| Product | Calibre RUM collects Core Web Vitals and other user experience signals from real browser sessions to help teams find slow pages and UX issues. | Supercheck combines Playwright testing, k6 load testing, synthetic monitoring, status pages, and AI-assisted incident investigation in one open-source platform. |
| Security | Calibre says data in transit uses TLS and data at rest is encrypted with AES-256, with encryption keys managed through AWS KMS and automatically rotated. | The self-hosting documentation says user-authored tests run in ephemeral K3s jobs isolated with gVisor. |
Plans
In their own words
Calibre RUM
Calibre RUM has no write-up on Specifiction yet; its figures are above.
Supercheck
Supercheck has no write-up on Specifiction yet; its figures are above.