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Fly.io

Deploy Docker containers globally at the edge with fast-launching microVMs

Fly.io is a developer-centric cloud platform that runs containerised applications across 30+ global regions using Firecracker microVMs, placing apps close to end users to reduce latency. The platform offers Docker-native deployment via its CLI tool (flyctl), supporting multi-region orchestration, persistent volumes, and managed Postgres. It's positioned as a modern alternative to Heroku for developers requiring global reach and lower-level infrastructure control without the complexity of Kubernetes.

Real cost
Free
Pay-as-You-Go (Free Tier)
RC Score
7.5/10
0 user reviews
User rating
No ratings
Nobody has rated this yet
Verified
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Basis: research-based
The methodology

How we scored it

A weighted average of the 4 dimensions below, each judged 0–10 from published pricing, vendor documentation and independent user feedback. We do not run hands-on tests, and no vendor has any say in a score.

Value for money33%
7.0/10
Features27%
8.5/10
Ease of use20%
7.2/10
Support quality20%
7.5/10

2 further dimensions are not scored for this product yet, so they are left out of the average rather than counted as zero. How the score works.

Pricing

What it actually costs

Intro pricing shown — see the renewal note for what you'll pay after the introductory term. We don't hide the second-act price.

★ Best Value

Pay-as-You-Go (Free Tier)

Fly.io states there is no permanent “free tier”; instead there are free resource allowances and a limited free trial (e.g. trial includes 2 VM hours or 7 days).

$0/mo intro
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Shared CPU VM (pay-as-you-go)

Shown as preset shared-cpu-1x · 256MB at $0.0027/hour (~$1.94/month). Machines compute billed by the second while a Machine runs; storage and egress priced separately.

$1.94/mo intro
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Performance VM (pay-as-you-go)

Vendor publishes multiple performance presets (e.g. performance-1x $0.0431/hr → $31/mo, performance-2x $0.0861/hr → $62/mo, etc.) but does not publish a single generic “Performance VM” price

$7.7/mo intro
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Support: Standard

Standard support listed at $29/month with published first-response time and features.

$29/mo intro
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Support: Premium

Premium support listed at $199/month with higher SLAs and features; Enterprise listed separately (from $2,500/mo).

$199/mo intro
Get this plan

What to check before you commit to Fly.io

A tool is judged on what it costs once it is adopted, not what it costs to try. These are the four things that change that number.

The price once it is adopted

At $1.94 a seat, five people is $9.70 a month ($116.40 a year) and ten is $19.40 ($232.80 a year). Tools are bought one seat at a time and paid for by the dozen.

Where the usage ceiling sits

Credits, generations, exports and API calls are the lines that run out mid-month. Find what happens when you hit the cap — hard stop, throttle, or an overage rate you have not budgeted for.

What the free tier is really for

A free tier is an evaluation, not a plan. Check which limit you would hit first in real use, because that is the one that decides when you start paying.

Getting your work back out

Export formats decide how reversible this decision is. A tool that only exports to its own format costs more to leave than its price suggests.

These are the checks we apply across developer tools, in the same order, so two pages can be compared line for line.

ReviewCost analysis

How much does Fly.io really cost?

Our calculation from the vendor's published prices — not a figure the vendor advertises.

Pricing modelUsage-based

The headline price covers an allowance. Cost rises with what you use, so the figure to plan around is your expected volume, not the entry price. Costs are usage-based: compute billed by the second while Machines run; storage billed per GB-month; egress billed per GB; many resources priced per-region or per‑resource and scale with provisioned usage.

We have not verified whether this plan is charged per seat, so a team cost would be a guess.

What we could not establish
  • The vendor does not publish a renewal price, so three-year totals assume today's price holds.
  • No annual price recorded, so annual figures are twelve times the monthly price.

Work out your own cost

Per month
$1.94
Per year
$23.28
Over 3 years
$69.84
Assumptions
  • Whether this plan is charged per seat is not published, so the figure below is for one subscription.
  • No renewal increase is published, so today's price is held flat.
Head to head

Fly.io against the field

The highest-scoring alternatives in the same category, compared on the figures we hold for all of them.

 Fly.ioThis pageSupabaseGitHub
ReviewCost score7.5/108.8/108.6/10
Cheapest planPay-as-You-Go (Free Tier)——
From———
Renews atNot publishedNot publishedNot published
Biggest strengthGlobal edge deployment with 30+ regions, placing apps physically close to users for consistently low latencyPostgres foundation means you're not locked into a proprietary database — you can self-host or migrate if neededGitHub Copilot demonstrably accelerates development — customers like Duolingo report 25% speed gains and Mercado Libre cuts coding time by 50%
Biggest drawbackFree tier removed for new accounts (only legacy users retain 3 free shared-CPU VMs); all new signups face pay-as-you-go from day oneDashboard can be overwhelming for developers new to Postgres — the SQL editor and migration tools assume some database literacyPricing can become punitive at scale — enterprise features and Copilot seats add up quickly for larger teams, making alternatives like GitLab worth evaluating

Prices are the published figures at the time of writing and change often. Renewal pricing is shown where the vendor publishes it. See how we review.

Common questions

What people ask about Fly.io

Straight answers to what buyers actually ask, drawn from the documentation and published user reports.

Does Fly.io still have a free tier?
Only legacy users retain the free tier (3 shared-CPU VMs, 3GB storage, 160GB egress). All new accounts must use pay-as-you-go from signup. A shared-CPU-1x-256MB VM costs ~$1.94/month.
What's the real cost of a small production app?
A basic single-app setup (1 CPU/1GB VM, 10GB volume, no dedicated IP) runs $10–$20/month. Add a dedicated IPv4 (+$2), multi-region replication, and egress charges, and total spend climbs to $30–$100+/month for realistic workloads.
Is Fly.io easier than Kubernetes?
Yes, Fly.io's Docker-native flyctl CLI is significantly simpler than Kubernetes for single-app deployments. It is, however, more complex than Railway or Render because you control VM placement, sizing, and regional configuration.
When should I choose Fly.io over Railway or Render?
Choose Fly.io when latency across geographies is a real product constraint or when you need fine-grained control over compute and regions. For simpler single-region apps, Railway or Render are friendlier and have fewer billing surprises.
How reliable is Fly.io?
Generally reliable, but users report occasional 'Machine stopped responding' incidents. The platform suits applications that can tolerate rare restarts; it's not ideal for ultra-high-availability systems without multi-cloud redundancy.

Page history

Published
13 September 2026
Last updated
1 October 2026
Pricing checked against vendor
1 October 2026

Sources & verification

Pricing on this page was taken from the vendor's published pricing page on 1 October 2026.