Sentry and Cypress are often evaluated together by teams building out their reliability stack. Sentry (application error monitoring and performance management, founded 2012) is typically a fit for Developers, Frontend Teams, and Backend Engineers, while Cypress (javascript end-to-end testing framework, founded 2015) leans toward Frontend Developers and QA Engineers. Both cover 6 of the same core capabilities, so the decision usually comes down to where they diverge.
Application error monitoring and performance management
Pricing: Developer (Free - 5k errors), Team from ~$26/mo, Business from ~$80/mo
Founded: 2012
Best for: Developers, Frontend Teams, Backend Engineers
JavaScript end-to-end testing framework
Pricing: Open source free. Cloud Team from $67/mo (10k test results)
Founded: 2015
Best for: Frontend Developers, QA Engineers
| Feature | Sentry | Cypress |
|---|---|---|
| Synthetic Monitoring | ||
| Real User Monitoring | ||
| API & Browser Testing | ||
| Self-Healing Tests | ||
| AI-Powered | ||
| Uptime Monitoring | ||
| Alerting | ||
| Slack Integration | ||
| CI/CD Integration | ||
| Multi-Location Checks | ||
| SSL Monitoring | ||
| Status Page | ||
| Open Source | ||
| On-Premise / Self-Host | ||
| Free Tier | ||
| API Access | ||
| Dashboards | ||
| Incident Management |
Pros
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On capability breadth, Sentry pulls ahead here: it uniquely offers Real User Monitoring, Uptime Monitoring, Alerting, and API Access. Choose Sentry if those matter to your workflow; Cypress (Open source free. Cloud Team from $67/mo (10k test results)) remains a solid option if API & Browser Testing and Open Source is what you need.
Sentry is application error monitoring and performance management, while Cypress is javascript end-to-end testing framework. Sentry adds Real User Monitoring, Uptime Monitoring, and Alerting on top of the shared feature set. Cypress brings API & Browser Testing and Open Source that Sentry does not.
Sentry pricing: Developer (Free - 5k errors), Team from ~$26/mo, Business from ~$80/mo. Cypress pricing: Open source free. Cloud Team from $67/mo (10k test results). Evaluate against your check volume and team size; entry pricing rarely reflects total cost at scale.
Sentry is designed with Developers, Frontend Teams, and Backend Engineers in mind, whereas Cypress targets Frontend Developers and QA Engineers. If your team matches the former profile, Sentry is usually the closer fit.
No. It does a different job. Error trackers tell you an exception fired. They can't see the failures that never throw: a checkout that silently breaks, an expired SSL certificate, a page that returns 200 and renders blank. ObserveOne monitors those user-facing journeys in production; teams run it alongside an error tracker, not instead of one.
Error trackers tell you an exception fired. They can't see the failures that never throw: a checkout that silently breaks, an expired SSL certificate, a page that returns 200 and renders blank. ObserveOne monitors those user-facing journeys in production; teams run it alongside an error tracker, not instead of one. The free tier covers enough to try it on one critical journey.
Each tool has its own alternatives page too, not just this matchup.