CircleCI
Tenable
| Feature | CircleCI | Tenable |
|---|---|---|
| Pricing | Free / from $15/mo | Free / from $3990/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.3 / 5 | 4.3 / 5 |
| Best For | development-teams, open-source-projects, startups, saas-companies | security-teams, compliance-officers, it-operations, vulnerability-managers |
| Founded | 2011 | 2002 |
| Ci Cd Pipelines | ✓ | ✗ |
| Docker Support | ✓ | ✗ |
| Caching | ✓ | ✗ |
| Parallelism | ✓ | ✗ |
| Orbs | ✓ | ✗ |
| Test Splitting | ✓ | ✗ |
| Insights Dashboard | ✓ | ✗ |
| Ssh Debugging | ✓ | ✗ |
| Vulnerability Scanning | ✗ | ✓ |
| Asset Discovery | ✗ | ✓ |
| Risk Prioritization | ✗ | ✓ |
| Compliance Reporting | ✗ | ✓ |
| Web App Scanning | ✗ | ✓ |
| Cloud Security | ✗ | ✓ |
✓ CircleCI Pros
- Fast build times with powerful caching
- Excellent Docker support and layer caching
- Free tier includes 6,000 build minutes/month
- Orbs marketplace for reusable configuration
✗ CircleCI Cons
- Credit-based pricing can be confusing
- Debugging failed builds requires SSH access
- Configuration YAML can become complex
✓ Tenable Pros
- Comprehensive vulnerability coverage
- Excellent asset discovery
- Good risk prioritization
- Strong compliance reporting
✗ Tenable Cons
- Expensive for large environments
- Complex initial setup
- Scanning can impact performance
The Verdict
CircleCI is built for development teams and open source projects, with a focus on ci-cd-pipelines and docker-support. Tenable targets security teams and compliance officers and leads with vulnerability-scanning and asset-discovery.
On pricing, CircleCI is the clear winner for budget-conscious users — starting at $15/mo compared to $3990/mo for Tenable. That $3975/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.
Feature-wise, CircleCI offers broader built-in capabilities (8 features vs 6), while Tenable 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.