shouldiuse.io

New check

Comparison

Fly.io vs Heroku

Fly.io and Heroku both land on Depends.

Fly.io

fly.io

Depends
Confidence: Low

Buy if your engineering team needs secure, globally deployed VMs for real apps or AI agents and can handle infra itself.

Read the full report

Heroku

heroku.com

Depends
Confidence: Medium

Buy Heroku if you want zero-ops deploys and will pay a premium for convenience, especially on Rails, Django, Node, or with Salesforce.

Read the full report

Add this comparison to your site

Put the Fly.io vs Heroku badge on your site.

Visitors see the independent comparison.

The link points here, and search engines follow it.

This is the badge visitors see on your site.

Depends Fly.io Depends Heroku Independent comparison on Should I Use It

Paste one snippet. Keep the link as it is. A nofollow tag stops search engines from following it.

Fly.io versus Heroku
CompareFly.ioHeroku
VerdictDependsDepends
Best forEngineering teams running real appsRails/Django/Node teams wanting zero-ops deploys
Who it's not forNon-technical founders wanting hands-off hostingHobbyists wanting a free tier . eliminated in 2022
PrivacyNo known public vulnerabilities found in the sources reviewed.¹ISO/SOC/HIPAA/PCI compliant, but a 2022 attack using stolen OAuth tokens exposed customer credentials.⁸
Support qualityNo support evidence foundMultiple complaints, including breach-report handling
Public sentimentNo independent user reviews were found in the sources reviewed.¹Reviewers still praise the effortless deploys but increasingly complain about price, support, and whether Heroku has fallen behind newer platforms.³
Biggest gotchaGuess: usage-based billing can spike fast; no pricing appeared in reviewed sources, so model costs first14Consumption pricing stacks up: dynos plus add-ons plus managed data services; enterprise tier rising11

Pick Fly.io when

  • Engineering teams running real apps
  • Builders deploying AI agents
  • Compliance-driven teams (SOC 2, BAAs)
  • Global low-latency app hosting

When Fly.io is not a fit

  • Non-technical founders wanting hands-off hosting
  • Teams needing published pricing before purchase
  • Simple static sites or pure serverless workloads
  • Buyers wanting independent user reviews first . none exist in sources

Pick Heroku when

  • Rails/Django/Node teams wanting zero-ops deploys
  • Salesforce-centric shops (Heroku Connect)
  • Startups to mid-size SaaS prioritizing speed
  • Teams avoiding DevOps hiring

When Heroku is not a fit

  • Hobbyists wanting a free tier . eliminated in 2022
  • Cost-sensitive teams; plain VMs, Railway, or Render cost far less
  • Solo devs hosting one simple app . overkill
  • Teams needing deep infrastructure control or Kubernetes-style config

Sources

  1. Product security pagefly.io
    security
  2. Salesforce Heroku Reviews . G2g2.com
    review
  3. Heroku Reviews . Gartner Peer Insightsgartner.com
    review
  4. Heroku Reviews . Trustpilottrustpilot.com
    review
  5. Heroku announces plans to eliminate free plans . TechCrunchtechcrunch.com
    news
  6. Salesforce buys Heroku for $212M . TechCrunchtechcrunch.com
    news
  7. Heroku admits customer credentials stolen . BleepingComputerbleepingcomputer.com
    security
  8. Heroku OAuth token attack . Dark Readingdarkreading.com
    security
  9. Heroku Compliance & Certificationsheroku.com
    official
  10. Heroku Pricingheroku.com
    official
  11. Enterprise prices are going up . Reddit r/Herokureddit.com
    review
  12. Is Heroku really expensive? . Reddit r/railsreddit.com
    review
  13. Extremely Disappointed with Heroku Support . Reddit r/Herokureddit.com
    review
  14. fly.iofly.io
    review