Softwr

Cloud · head to head

Fly.io vs RubyMine

Fly.io logo

Fly.io

Cloud

Deploy web applications globally

From
$29/month
Free plan
No
Full reviewWebsite
RubyMine logo

RubyMine

Developer Tools

JetBrains IDE for Ruby and Ruby on Rails development

From
$24/month
Free plan
No
Full reviewWebsite

The short version

  • Each has a real cost: Fly.io egress is priced by destination region, from $0.02 per GB in North America and Europe to $0.12 per GB for Africa and India, so the same traffic costs six times more depending on where users are; RubyMine no permanently free tier for commercial use; requires an ongoing subscription.
  • They diverge on capability: Fly.io covers Global deployment, RubyMine covers Rails-aware coding assistance.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Fly.io and RubyMine actually diverge.

Attributes where Fly.io and RubyMine differ
AttributeFly.ioRubyMine
Starting price$29/month$24/month
Pricing modelusage-basedsubscription
PlatformsWeb, Api, Dockerwindows, mac, linux
CategoryCloudDeveloper Tools
Founded20202000

Identical on both: free tier (No), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Fly.io

  • Global deployment
  • Postgres databases
  • Redis support
  • Auto-scaling
  • Health checks
  • Backups
  • Monitoring
  • Docker

Only in RubyMine

  • Rails-aware coding assistance
  • Integrated debugger
  • Test runner integration
  • Database tools
  • Version control integration

Both cover

  • Docker support
  • Docker support

What people use each for

The jobs each tool is most often brought in to do.

Fly.io

  • Deploying containerised applications close to users across regionsnot RubyMine
  • Running full stack apps and databases on managed machinesnot RubyMine

RubyMine

  • Building and maintaining Ruby on Rails applicationsnot Fly.io
  • Debugging Ruby web applicationsnot Fly.io
  • Running and managing RSpec or Minitest suitesnot Fly.io
  • Working across Ruby, JavaScript, and SQL in one projectnot Fly.io

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Fly.io

  • Egress is priced by destination region, from $0.02 per GB in North America and Europe to $0.12 per GB for Africa and India, so the same traffic costs six times more depending on where users are
  • Stopped machines still bill at $0.15 per GB of root filesystem a month, so a paused service is not a free one
  • Volumes are billed on provisioned capacity rather than usage, at $0.15 per GB a month
  • Reservation discounts of 40% require paying a year up front, from $36 to $1,440
  • Fly Kubernetes is a separate $75 a month per cluster
  • Dedicated IPv4 addresses are $2 a month each

RubyMine

  • No permanently free tier for commercial use; requires an ongoing subscription.
  • More resource-intensive than lightweight editors such as Sublime Text.
  • Focused primarily on Ruby, so polyglot teams may prefer IntelliJ IDEA Ultimate with plugins instead.
  • Startup time can be slower than simpler text editors on older hardware.

Pricing, plan by plan

Fly.io

$29/month
  • Pay-as-You-Go$null/mo
    • Micro VMs and persistent storage charged by usage
    • FlyCTL CLI
    • Unlimited users and organizations
  • Serious Support$29/month
    • Access to dedicated engineering team
    • All Pay-as-You-Go features
  • Machine Reservation Blocks$null/mo
    • 40% discount on machine usage
    • Requires upfront payment for savings
  • Compliance Package$99/month
    • HIPAA compliance
    • BAAs
    • SOC2 documentation

RubyMine

$24/month
  • Individual$24/month
    • Personal use license
    • Access to RubyMine
    • Free for students and open-source maintainers
  • Organization$34/month
    • Business use license
    • Access to RubyMine
    • Volume and renewal discounts

Which should you pick?

Choose Fly.io if

  • You need global deployment.
  • You work on Web, Api, Docker.
  • You also want postgres databases.
Fly.io review

Choose RubyMine if

  • You need rails-aware coding assistance.
  • You work on windows, mac, linux.
  • You also want integrated debugger.
RubyMine review

Questions people ask

Is Fly.io or RubyMine better?
Neither clearly leads. Fly.io starts at $29/month and RubyMine at $24/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fly.io or RubyMine?
Fly.io starts at $29/month and RubyMine at $24/month.
Does Fly.io or RubyMine run on more platforms?
Fly.io runs on Web, Api, Docker. RubyMine runs on windows, mac, linux.
What is Fly.io best used for?
Fly.io is most often used for deploying containerised applications close to users across regions, running full stack apps and databases on managed machines. Of those, deploying containerised applications close to users across regions and running full stack apps and databases on managed machines are not what RubyMine is typically brought in for.
What can Fly.io do that RubyMine cannot?
Fly.io covers Global deployment, Postgres databases, Redis support, Auto-scaling. RubyMine covers Rails-aware coding assistance, Integrated debugger, Test runner integration, Database tools. Both handle Docker support, Docker support.

Answered from the vendors’ own pages

Fly.io: Is there a free tier for Fly.io?

Fly.io does not advertise a free tier. The base plan is pay-as-you-go with usage-based pricing for Micro VMs and persistent storage. All users get FlyCTL CLI, unlimited organizations, private networking, SSO, ACLs, and scoped tokens.

Source
RubyMine: How much does RubyMine cost?

RubyMine is sold as a JetBrains Toolbox subscription starting around $24/month for individuals and $34/month for organizations, with free licenses available for students and open-source maintainers.

Source
Fly.io: How much does Fly.io Serious Support cost?

Serious Support costs 29 USD per month and provides access to a dedicated engineering team while maintaining all pay-as-you-go features for Micro VMs and storage.

Source
RubyMine: Is there a free trial?

JetBrains provides a free trial period for RubyMine so developers can evaluate it before purchasing a subscription.

Source
Fly.io: What does Fly.io Compliance Package include?

The Compliance Package is 99 USD per month and includes HIPAA compliance, BAAs, and SOC2 documentation for organizations requiring compliance certifications.

Source
RubyMine: What platforms does RubyMine support?

RubyMine runs as a desktop application on Windows, macOS, and Linux via JetBrains Toolbox.

Source
Fly.io: Does Fly.io offer discounts for upfront commitment?

Yes, Fly.io offers Machine Reservation Blocks with 40% discount on machine usage. This requires upfront payment but applies savings on infrastructure costs.

Source
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