⚖️Side-by-Side Comparison
CircleCI vs Fly.io: Which is Better in 2026?
We've compared 2 tools across pricing, features, ratings, and reviews to help you make an informed decision. No paid placements — just facts.
Compare different tools →| Feature | CircleCI Developer Tools | Fly.io Developer Tools |
|---|---|---|
| Rating | 4.3(52) | 4.7(128) |
| Starting Price | Free | Free tier |
| Pricing Model | Freemium | Pay-As-You-Go |
| Free Plan | ||
| Free Trial | ||
| API Available | ||
| Verified | ||
| Founded | 2011 | 2017 |
| HQ | San Francisco, CA | Chicago, IL |
| Team Size | 201-500 | 51-200 |
| Platforms | Web | WebCLI |
| Top Integrations | GitHubBitbucketGitLabSlack+2 more | GitHub ActionsTigrisNeonUpstash+1 more |
| Description | CircleCI is a continuous integration and delivery platform used by leading engineering teams to ship software faster. With powerful caching, parallelism, and an extensive marketplace of pre-built integrations, CircleCI accelerates your CI/CD. | Fly.io runs your apps in micro VMs on servers close to your users — in 30+ regions around the world. Developers love Fly for its CLI simplicity, global networking, and transparent pricing that makes Heroku-level DX affordable at scale. |