Sentry vs Uptime Robot
Sentry is application monitoring platform focused on error tracking, performance monitoring, and session replay, while Uptime Robot is simple uptime monitoring service that checks your websites every 5 minutes and alerts you when they go down. The biggest difference up front: Uptime Robot is free, while Sentry starts at $26/mo. Sentry is built for development teams that need to catch, triage, and fix errors quickly, whereas Uptime Robot targets anyone wanting simple, free uptime monitoring.
| Feature | Sentry | Uptime Robot |
|---|---|---|
| Free tier available | ✓ | ✓ |
| Open source | ✓ | — |
| API | — | ✓ |
| Alerts | ✓ | ✓ |
| Error Tracking | ✓ | — |
| HTTP Monitoring | — | ✓ |
| Performance Monitoring | ✓ | — |
| Release Tracking | ✓ | — |
| Session Replay | ✓ | — |
| Status Pages | — | ✓ |
Pricing: Uptime Robot is completely free (Free for 50 monitors), 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 Uptime Robot lacks. Uptime Robot brings API, HTTP Monitoring and Status Pages that Sentry does not have. Both share Alerts.
Team fit: Both tools target any size teams, so the decision hinges on features and workflow fit rather than scale.
Open source: Sentry is open source, meaning you can self-host, audit the code, and avoid vendor lock-in. Uptime Robot 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. Uptime Robot's biggest strengths are: includes http monitoring as a core feature, purpose-built for monitoring workflows. includes status pages 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 Uptime Robot, the main complaint is that free plan exists but key features are locked behind the paid upgrade.
choose Sentry if
- You need a tool built for development teams that need to catch, triage, and fix errors quickly
- You need self-hosting, data sovereignty, or the ability to audit source code
- You specifically need Error Tracking and Performance Monitoring
- You care about session replay shows exactly what users experienced
- The free tier works for you: free for 5k errors and 10k performance events/mo
choose Uptime Robot if
- You need a tool built for anyone wanting simple, free uptime monitoring
- Budget is a hard constraint — Uptime Robot is free, Sentry is not
- You specifically need API and HTTP Monitoring
- You care about includes status pages as a core feature, purpose-built for monitoring workflows
- The free tier works for you: free for 50 monitors
frequently asked
What is the difference between Sentry and Uptime Robot?
Sentry is application monitoring platform focused on error tracking, performance monitoring, and session replay, while Uptime Robot is simple uptime monitoring service that checks your websites every 5 minutes and alerts you when they go down. The biggest difference up front: Uptime Robot is free, while Sentry starts at $26/mo. Sentry is built for development teams that need to catch, triage, and fix errors quickly, whereas Uptime Robot targets anyone wanting simple, free uptime monitoring.
Should I use Sentry or Uptime Robot?
Uptime Robot is the free option; Sentry charges $26/mo but may offer more polish. Here is how they compare.
When should I choose Sentry over Uptime Robot?
Choose Sentry if You need a tool built for development teams that need to catch, triage, and fix errors quickly; You need self-hosting, data sovereignty, or the ability to audit source code; You specifically need Error Tracking and Performance Monitoring; You care about session replay shows exactly what users experienced; The free tier works for you: free for 5k errors and 10k performance events/mo.
When should I choose Uptime Robot over Sentry?
Choose Uptime Robot if You need a tool built for anyone wanting simple, free uptime monitoring; Budget is a hard constraint — Uptime Robot is free, Sentry is not; You specifically need API and HTTP Monitoring; You care about includes status pages as a core feature, purpose-built for monitoring workflows; The free tier works for you: free for 50 monitors.
related comparisons
Datadog vs Sentry · Sentry vs BetterStack · Sentry vs Grafana · Sentry vs New Relic · Sentry vs Checkly · Sentry vs Axiom · Sentry vs Cronitor · Sentry vs Incident.io