MantisBT
Microsoft Clarity
| Feature | MantisBT | Microsoft Clarity |
|---|---|---|
| Pricing | Free / from $4.95/mo | Free only |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 3.9 / 5 | 4.5 / 5 |
| Best For | developers, small-teams, open-source-projects, budget-conscious-teams | small-businesses, startups, bloggers, budget-conscious-teams |
| Founded | 2000 | 2020 |
| Bug Tracking | ✓ | ✗ |
| Custom Fields | ✓ | ✗ |
| Email Notifications | ✓ | ✗ |
| Role Management | ✓ | ✗ |
| Plugins | ✓ | ✗ |
| Time Tracking | ✓ | ✗ |
| Session Recordings | ✗ | ✓ |
| Heatmaps | ✗ | ✓ |
| Scroll Maps | ✗ | ✓ |
| Rage Click Detection | ✗ | ✓ |
| Ai Copilot | ✗ | ✓ |
| Google Analytics Integration | ✗ | ✓ |
| Dead Click Detection | ✗ | ✓ |
✓ MantisBT Pros
- Free and open-source
- Easy to set up
- Lightweight
- Extensible with plugins
✗ MantisBT Cons
- Dated interface
- Limited agile features
- Small community vs alternatives
✓ Microsoft Clarity Pros
- Completely free with unlimited traffic and recordings
- AI-powered Copilot for asking questions about data
- No data sampling (records every session)
- GDPR-compliant with built-in privacy masking
✗ Microsoft Clarity Cons
- Less advanced analytics than paid alternatives
- No A/B testing or experimentation features
- Limited integration ecosystem
The Verdict
MantisBT is built for developers and small teams, with a focus on bug-tracking and custom-fields. Microsoft Clarity targets small businesses and startups and leads with session-recordings and heatmaps.
Microsoft Clarity uses custom enterprise pricing, while MantisBT starts at $4.95/mo — a tangible advantage for teams with a fixed budget.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Microsoft Clarity edges out on user ratings (4.5 vs 3.9). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.
Feature-wise, Microsoft Clarity offers broader built-in capabilities (7 features vs 6), while MantisBT takes a more focused approach — which can mean a simpler, faster onboarding experience.
Both tools are a solid fit for budget conscious teams — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.
Bottom line: Microsoft Clarity has a slight overall edge — but if free and open-source matters most to you, MantisBT may still be the right call.