CircleCI vs Fly.io
Compare CircleCI and Fly.io on features, pricing, and buyer fit using the same researched criteria.
CircleCI
CI/CD platform — not a git host. Free (6k build minutes / 30k credits framing); Performance from $15/mo; Scale contact. Peer of GitHub Actions / GitLab CI.
Best for
- • Teams that want specialist CI/CD against an existing GitHub/GitLab/Bitbucket remote
- • Buyers comparing CircleCI Performance $15 to GitHub Actions minutes
- • Orgs that do not want to move source control in order to buy CI
Starting from $15.00/user/mo
Free plan available
VS
Our verdict
No universal winner. Choose based on which criteria matter most for your team.
CircleCI is better for
- ✓ Free plan
Fly.io is better for
- ✓ Starting pricing
Tie
- • Integrations
- • Security & admin
Choose CircleCI if: Teams that want specialist CI/CD against an existing GitHub/GitLab/Bitbucket remote
Choose Fly.io if: Teams that want PAYG microVM/app hosting close to users
Fly.io
Cloud PaaS / microVM app platform — PAYG; shared-cpu-1x from ~$1.94/mo in lower-cost regions. Support Standard $29/mo is support, not hosting. Does not outrank Render 7.9.
Best for
- • Teams that want PAYG microVM/app hosting close to users
- • Buyers comparing Fly.io $1.94 shared-cpu-1x to Render Pro $25 + compute
- • Orgs that will not treat $29 Support as the hosting SKU
Starting from $1.94/user/mo
No free plan
Evidence & transparency
Sources and research process behind this comparison.
Sources
6
Criteria
5
Screenshots
2
Sources consulted
| Title | Product | Type |
|---|---|---|
| CircleCI — Official Site | CircleCI | official-product-page |
| CircleCI Pricing | CircleCI | official-pricing-page |
| CircleCI pricing | CircleCI | official-product-page |
| Fly.io — Official Site | Fly.io | official-product-page |
| Fly.io Pricing | Fly.io | official-pricing-page |
| Fly.io pricing | Fly.io | official-product-page |
Methodology steps
- 1Collect first-party product and pricing evidence
- 2Map both products to the same category criteria
- 3Record criterion outcomes with confidence and sources
- 4Publish only when editorial gates allow indexing
Methodology version 1.0.0.
Affiliate relationships never change comparison outcomes. We evaluate both products on the same criteria and allow ties when evidence does not support a universal winner.
Read full methodology →Some visit links may be affiliate links — we may earn a commission at no extra cost to you. Comparison outcomes are never based on commission.