SoftwareGlimpse

CircleCI vs Fly.io

Compare CircleCI and Fly.io on features, pricing, and buyer fit using the same researched criteria.

Independently recommendedLast updated Aug 18, 20266 evidence sources2 screenshotsHow we compare

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CircleCI

7.5/10

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

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

See detailed comparison ↓

Fly.io

7.7/10

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

CircleCI vs Fly.io at a glance

Criterion-level leaders from verified research.

Full scorecard →

Scorecard preview

Criterion leaders based on verified research — open the Scorecard tab for evidence detail.

Starting pricingFly.io
CircleCI
Fly.io
Free planCircleCI
CircleCI
Fly.io
User / licence minimumDepends
CircleCI
Fly.io
IntegrationsTie
CircleCI
Fly.io
Security & adminTie
CircleCI
Fly.io

Which It Development is better for you?

Quick picks based on fit — not a universal ranking.

→ CircleCI
Best for free plan
CircleCI researches a free plan; Fly.io does not research a free plan.
→ Fly.io
Best for starting pricing
Fly.io publishes a lower researched starting floor ($1.94/mo vs $15/mo for CircleCI). Confirm currency, renewals, and add-ons — not a total TCO winner.

The biggest differences

Where the products diverge most clearly on verified criteria.

Starting pricing
Fly.io wins
CircleCI
Trails Fly.io on this criterion
Fly.io
Fly.io publishes a lower researched starting floor ($1.94/mo vs $15/mo for CircleCI). Confirm currency, renewals, and add-ons — not a total TCO winner.
Free plan
CircleCI wins
CircleCI
CircleCI researches a free plan; Fly.io does not research a free plan.
Fly.io
Trails CircleCI on this criterion

Which should you choose?

Choose CircleCI if

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

Choose Fly.io if

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

Related comparisons

Alternatives to consider

How we compare

A short look at the comparison process. Full methodology

1
Collect
Collect official product information, pricing, and product evidence.
2
Normalize
Map evidence to the same category evaluation criteria for both products.
3
Compare
Evaluate both products against identical criteria — ties and depends are allowed.
4
Explain
Show why each product wins, loses, or ties, with evidence behind the outcome.

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Independent criterion outcomes
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