MantisBT
Teamwork
| Feature | MantisBT | Teamwork |
|---|---|---|
| Pricing | Free / from $4.95/mo | Free / from $13.99/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 3.9 / 5 | 4.3 / 5 |
| Best For | developers, small-teams, open-source-projects, budget-conscious-teams | agencies, professional-services, client-work-teams, project-managers |
| Founded | 2000 | 2007 |
| Bug Tracking | ✓ | ✗ |
| Custom Fields | ✓ | ✗ |
| Email Notifications | ✓ | ✗ |
| Role Management | ✓ | ✗ |
| Plugins | ✓ | ✗ |
| Time Tracking | ✓ | ✓ |
| Task Management | ✗ | ✓ |
| Resource Management | ✗ | ✓ |
| Billing Invoicing | ✗ | ✓ |
| Gantt Charts | ✗ | ✓ |
| Project Templates | ✗ | ✓ |
✓ 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
✓ Teamwork Pros
- Excellent for client-facing work
- Built-in time tracking and billing
- Unlimited free client users
- Comprehensive project templates
✗ Teamwork Cons
- Interface can feel cluttered
- Learning curve for full feature set
- Mobile app has limited features
The Verdict
MantisBT is built for developers and small teams, with a focus on bug-tracking and custom-fields. Teamwork targets agencies and professional services and leads with task-management and time-tracking.
On pricing, MantisBT is the clear winner for budget-conscious users — starting at $4.95/mo compared to $13.99/mo for Teamwork. That $9.04/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Teamwork edges out on user ratings (4.3 vs 3.9). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.
Bottom line: Teamwork has a slight overall edge — but if free and open-source matters most to you, MantisBT may still be the right call.