kitio.aiSentry vs RunSybil
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Sentry starts at See pricing page and RunSybil starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Error monitoring
- Tracing and profiling
- Session replay
- Seer AI debugging agent
- AI code review
- Sentry MCP server
- Autonomous penetration testing
- Pull request security feedback
- Attack path chaining
- Continuous attack surface monitoring
- SOC 2 pentests
| Feature | Sentry | RunSybil |
|---|---|---|
| Best for | Error and performance monitoring with an AI debugging agent | Autonomous AI penetration testing on every deployment |
| Category | Coding | Coding |
| Pricing model | Freemium | Paid |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | No |
| Made by | Functional Software (Sentry) | RunSybil |
| Based in | United States | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Sentry starts at See pricing page and RunSybil starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Developer
Free
- Limited to one user
- Error monitoring and tracing
- 10 custom dashboards
- MCP access
Team
$26/mo billed yearly
- Unlimited users
- Third-party integrations
- 20 custom dashboards
- Seer available as add-on
Business
$80/mo billed yearly
- Unlimited custom dashboards
- Advanced quota management
- SAML and SCIM support
Enterprise
Contact sales
- Technical account manager
- Dedicated support
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Sentry
- Free plan for solo developers
- AI debugging works from real error data
- Wide SDK coverage
- Integrates with GitHub and Slack
- Seer needs a separate subscription
- Free plan is limited to one user
- Costs rise with event volume
RunSybil
- Tests on every deployment
- Reports only exploitable issues
- Covers code through infrastructure
- No public pricing
- Demo required to start
- Needs broad access to your systems
Which one should you choose?
Choose Sentry if you want:
- Free plan for solo developers
- AI debugging works from real error data
- Wide SDK coverage
Watch out: seer needs a separate subscription.
Choose RunSybil if you want:
- Tests on every deployment
- Reports only exploitable issues
- Covers code through infrastructure
Watch out: no public pricing.
Sentry vs RunSybil FAQ
What is the difference between Sentry and RunSybil?
Sentry: Error and performance monitoring with an AI debugging agent. RunSybil: Autonomous AI penetration testing on every deployment. Both are coding tools.
Is Sentry or RunSybil cheaper?
Sentry starts at See pricing page and RunSybil starts at See pricing page. Check both pricing pages for current plans.
Do Sentry and RunSybil have free plans?
Sentry: Yes. RunSybil: No.
Who makes Sentry?
Sentry is made by Functional Software (Sentry), based in United States.
Who makes RunSybil?
RunSybil is made by RunSybil, based in United States.
Which should I choose, Sentry or RunSybil?
Choose Sentry if you value free plan for solo developers and ai debugging works from real error data. Choose RunSybil if you value tests on every deployment and reports only exploitable issues.