CircleCI vs Knock: Full Comparison (2026)
Pricing, features, scores, and a clear verdict on which one is right for you.
The bottom line
CircleCI positions itself as "ci/cd platform for fast, flexible pipelines" while Knock goes after "notification infrastructure for developers" — so the right pick depends on which problem you're actually solving. Both use freemium pricing, but CircleCI charges per credit while Knock charges per message — a meaningful difference for larger teams. CircleCI (founded 2011) has had more time to build out its ecosystem and integrations, while Knock (2021) tends to move faster on modern UX and newer workflows.
At a glance
| CircleCI | Knock | |
|---|---|---|
| Our score | 74/100 | 84/100 |
| Starting price | $15/mo | Free |
| Free tier | Yes | Yes |
| Best for | CI/CD platform for fast, flexible pipelines | Notification infrastructure for developers |
Pricing comparison
Calculate your cost
Feature comparison
core
| Feature | CircleCI | Knock |
|---|---|---|
| Docker support | Yes | No |
| Pipeline configuration (YAML) | Yes | No |
| Parallelism | Yes | No |
| Caching | Yes | No |
| Test splitting | Yes | No |
| Multi-channel notifications | No | Yes |
| Workflow builder | No | Yes |
| User preferences | No | Yes |
| In-app feed | No | Yes |
| Template management | No | Yes |
Ratings breakdown
What the data tells us
Key capabilities you'd miss
Choosing CircleCI means going without Multi-channel notifications, Workflow builder, User preferences (which Knock offers). Choosing Knock means losing Docker support, Pipeline configuration (YAML), Parallelism. These are the features that typically drive the final decision — check whether your workflow depends on any of them before committing.
What company size tells you
CircleCI (501-1,000 employees) has the engineering bench to ship features across many fronts but may iterate slower on individual requests. Knock (1-10 employees) typically ships faster on its core product but may lag on peripheral features. Consider which matters more for your roadmap.
Choose CircleCI if...
- You want a free tier to get started
- You value powerful features over simplicity
- You need enterprise-grade capabilities
Choose Knock if...
- You want a free tier to get started
- You value an intuitive, easy-to-use interface
- Getting strong value for money is a priority
Frequently asked questions
Is CircleCI or Knock better?
Knock scores 84/100 compared to CircleCI's 74/100 on VendorVS. However, the best choice depends on your needs — CircleCI excels at ease of use (7/10) while Knock scores 9/10.
How much does CircleCI cost compared to Knock?
CircleCI starts at $15/mo (free tier available). Knock starts at free (free tier available). Knock is the more affordable option.
Does CircleCI or Knock have a free plan?
Yes, both CircleCI and Knock offer free tiers, so you can try each before committing to a paid plan.
Related comparisons
See how CircleCI and Knock compare to other developer tools tools.
CircleCIvs
DatadogCircleCIvs
New RelicCircleCIvs
TwilioCircleCIvs
GitLabCircleCIvs
Terraform / HCP TerraformCircleCIvs
PulumiCircleCIvs
ContentfulCircleCIvs
Sanity