Sentry
Splunk
| Feature | Sentry | Splunk |
|---|---|---|
| Pricing | Free / from $26/mo | Contact sales |
| Free Plan | ✓ Yes | ✗ No |
| Rating | 4.5 / 5 | 4.3 / 5 |
| Best For | developers, frontend-teams, mobile-developers, startups | enterprise, security-teams, devops-engineers, data-analysts |
| Founded | 2012 | 2003 |
| Error Tracking | ✓ | ✗ |
| Performance Monitoring | ✓ | ✗ |
| Session Replay | ✓ | ✗ |
| Source Maps | ✓ | ✗ |
| Release Tracking | ✓ | ✗ |
| Alerting | ✓ | ✓ |
| Integrations | ✓ | ✗ |
| Issue Triaging | ✓ | ✗ |
| Log Analysis | ✗ | ✓ |
| Real Time Monitoring | ✗ | ✓ |
| Dashboards | ✗ | ✓ |
| Machine Learning | ✗ | ✓ |
| Siem | ✗ | ✓ |
✓ Sentry Pros
- Excellent error tracking with full stack traces
- Source map support for minified code
- Session replay shows exactly what users experienced
- Open-source self-hosted option available
- Supports 100+ platforms and frameworks
✗ Sentry Cons
- Event quotas can be exceeded during incidents
- Alert fatigue if not properly configured
- Performance monitoring less mature than Datadog
✓ Splunk Pros
- Powerful search capabilities
- Real-time monitoring
- Extensive app ecosystem
- Enterprise-grade
✗ Splunk Cons
- Very expensive
- Complex pricing
- Resource-intensive
The Verdict
Sentry is built for developers and frontend teams, with a focus on error-tracking and performance-monitoring. Splunk targets enterprise and security teams and leads with log-analysis and real-time-monitoring.
Splunk uses custom enterprise pricing, while Sentry starts at $26/mo — a tangible advantage for teams with a fixed budget.
Sentry has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. Splunk requires a paid subscription from day one.
Feature-wise, Sentry offers broader built-in capabilities (8 features vs 6), while Splunk takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.