Sentry vs Checkly

Pricing: Checkly is completely free (Free for 5 checks), which makes it the obvious pick if budget is the top concern. Sentry starts at $26/mo, but Free for 5K errors and 10K performance events/mo. That cost buys you a more polished or feature-rich experience, so it comes down to whether the extras justify the spend.

Feature gaps: Sentry offers Error Tracking, Performance Monitoring and Release Tracking that Checkly lacks. Checkly brings API Checks, Monitoring as Code and Playwright that Sentry does not have. Both share Alerts.

Team fit: Sentry is geared toward any size teams, while Checkly is aimed at small teams teams. Pick the one that matches where your team is today and where it is headed — migrating tools later is always painful.

Open source: Sentry is open source, meaning you can self-host, audit the code, and avoid vendor lock-in. Checkly is proprietary — you are trusting the vendor with your data and uptime.

Where each tool shines: Sentry's biggest strengths are: best-in-class error tracking with detailed stack traces. session replay shows exactly what users experienced. Checkly's biggest strengths are: includes monitoring as code as a core feature, purpose-built for monitoring workflows. includes playwright as a core feature, purpose-built for monitoring workflows.

Watch out for: With Sentry, users commonly note that event-based pricing can get expensive with noisy apps. With Checkly, the main complaint is that free plan exists but key features are locked behind the paid upgrade.