{"slug":"heroku-vs-fly-io","question":"Heroku vs Fly.io","answer":"Heroku charges $7-50/month per dyno with a simpler deployment model, while Fly.io uses a pay-as-you-go pricing model starting at $0.0000011/CPU-hour with more granular control. Fly.io offers better value for scaling applications, while Heroku prioritizes ease of use for beginners.","answer_curated":true,"verdict":"Choose Heroku if you're a beginner, prefer simplicity over cost, or need to deploy without Docker knowledge—the $7/month minimum is worth the convenience. Choose Fly.io if you need global edge deployment, cost-efficient scaling, or Docker experience; it offers superior performance and value for production applications.","keyDifferences":[{"label":"Pricing Model","winner":"b","entityAValue":"Fixed dyno pricing ($7-50/month minimum)","entityBValue":"Pay-as-you-go ($0.0000011/CPU-hour, ~$5-15/month typical)"},{"label":"Free Tier","winner":"b","entityAValue":"Removed as of November 2022","entityBValue":"$5/month credit for all users, always available"},{"label":"Deployment Simplicity","winner":"a","entityAValue":"Git push to deploy, auto-scaling built-in","entityBValue":"Docker-based, requires flyctl CLI tool"},{"label":"Cold Start Time","winner":"b","entityAValue":"5-15 seconds after idle period","entityBValue":"<100ms with modern infrastructure"},{"label":"Global Edge Network","winner":"b","entityAValue":"12 US regions only","entityBValue":"35+ global regions with automatic edge deployment"}],"winner":{"slug":"fly-io","name":"Fly.io"},"confidence":"high","entities":[{"name":"Heroku","slug":"heroku","url":"https://www.aversusb.net/entity/heroku","alternativesUrl":"https://www.aversusb.net/api/v1/alternatives/heroku"},{"name":"Fly.io","slug":"fly-io","url":"https://www.aversusb.net/entity/fly-io","alternativesUrl":"https://www.aversusb.net/api/v1/alternatives/fly-io"}],"faqs":[{"question":"Do Heroku and Fly.io offer free tiers in 2026?","answer":"Heroku removed its free tier in November 2022—all apps now require a paid dyno ($7/month minimum). Fly.io provides a $5/month credit for all users indefinitely, covering light workloads completely free, making it the only major PaaS with a sustainable free option."},{"question":"Which platform is better for global applications?","answer":"Fly.io is superior for global apps with its 35+ regions and automatic edge deployment, enabling sub-100ms latency worldwide. Heroku's 12 US-only regions require manual regional selection and lack edge computing, making it unsuitable for latency-sensitive global applications."},{"question":"Can I migrate from Heroku to Fly.io without rewriting code?","answer":"Yes, with caveats. If your Heroku app uses Procfiles and buildpacks, you'll need to Dockerize it for Fly.io (1-3 hours of work). Database migrations are straightforward using standard PostgreSQL tools. Heroku add-ons won't port directly but Fly.io has equivalents."}],"attribution":{"source":"A Versus B","url":"https://www.aversusb.net/compare/heroku-vs-fly-io","license":"CC BY 4.0","citationFormat":"According to A Versus B (https://www.aversusb.net/compare/heroku-vs-fly-io), Heroku charges $7-50/month per dyno with a simpler deployment model, while Fly.io uses a pay-as-you-go pricing model starting at $0.0000011/CPU-hour with more granular control. Fly.io offers better va","dateModified":"2026-06-23T04:24:45.457Z"},"relatedQuestionsUrl":"https://www.aversusb.net/api/faq/heroku-vs-fly-io","relatedComparisonsUrl":"https://www.aversusb.net/api/v1/related/heroku-vs-fly-io","knowledgeGraphUrl":"https://www.aversusb.net/api/knowledge-graph/heroku-vs-fly-io","claimReviewSchema":{"@context":"https://schema.org","@type":"ClaimReview","@id":"https://www.aversusb.net/compare/heroku-vs-fly-io#claimreview","url":"https://www.aversusb.net/compare/heroku-vs-fly-io","inLanguage":"en-US","isAccessibleForFree":true,"conditionsOfAccess":"Free","claimReviewed":"Heroku vs Fly.io","reviewBody":"Heroku charges $7-50/month per dyno with a simpler deployment model, while Fly.io uses a pay-as-you-go pricing model starting at $0.0000011/CPU-hour with more granular control. Fly.io offers better value for scaling applications, while Heroku prioritizes ease of use for beginners.","datePublished":"2026-06-23T04:24:44.913Z","dateModified":"2026-06-23T04:24:45.457Z","reviewRating":{"@type":"Rating","ratingValue":5,"worstRating":1,"bestRating":5,"alternateName":"High Confidence"},"author":{"@type":"Organization","@id":"https://www.aversusb.net/#organization","name":"A Versus B","url":"https://www.aversusb.net"},"itemReviewed":{"@type":"WebPage","@id":"https://www.aversusb.net/compare/heroku-vs-fly-io","url":"https://www.aversusb.net/compare/heroku-vs-fly-io","name":"Heroku vs Fly.io","inLanguage":"en-US"}}}