kitio.aiSentry vs Alloy
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Sentry starts at See pricing page and Alloy starts at $20/mo. 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
- Browser capture extension
- Codebase connection
- Live sandbox preview
- Pull request export
- Figma import and export
- Design system libraries
| Feature | Sentry | Alloy |
|---|---|---|
| Best for | Error and performance monitoring with an AI debugging agent | Prototype changes on your real product by chatting, then open a PR |
| Category | Coding | Coding |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | $20/mo |
| Free plan | Yes | Yes |
| Made by | Functional Software (Sentry) | Alloy |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Sentry starts at See pricing page and Alloy starts at $20/mo. 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
3 plans
Free
Free
- Unlimited users
- $5 credits per user each month
- External sharing
Pro
$20/mo
- Per user
- $20 credits per user each month
- Code export
- Credit top-ups
Enterprise
Custom
- SAML and SCIM
- Custom credits and terms
- Account manager
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
Alloy
- Prototypes look like the real product
- Unlimited users on the free plan
- Changes can ship as real PRs
- Free credits are only $5 per user
- Code export requires Pro
- Priced per user
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 Alloy if you want:
- Prototypes look like the real product
- Unlimited users on the free plan
- Changes can ship as real PRs
Watch out: free credits are only $5 per user.
Sentry vs Alloy FAQ
What is the difference between Sentry and Alloy?
Sentry: Error and performance monitoring with an AI debugging agent. Alloy: Prototype changes on your real product by chatting, then open a PR. Both are coding tools.
Is Sentry or Alloy cheaper?
Sentry starts at See pricing page and Alloy starts at $20/mo. Check both pricing pages for current plans.
Do Sentry and Alloy have free plans?
Sentry: Yes. Alloy: Yes.
Who makes Sentry?
Sentry is made by Functional Software (Sentry), based in United States.
Who makes Alloy?
Alloy is made by Alloy.
Which should I choose, Sentry or Alloy?
Choose Sentry if you value free plan for solo developers and ai debugging works from real error data. Choose Alloy if you value prototypes look like the real product and unlimited users on the free plan.