# Fly.io vs Heroku

| Attribute | Fly.io | Heroku |
|---|---|---|
| **vioscaleAI score** | 70.5 (63% (medium)) | 67.1 (73% (medium)) |
| content.faq | `[{"answer":"A cloud platform that deploys Docker containers as isolated virtual machines across global data centers. Supports multiple programming languages and frameworks, plus Sprites, a specialized offering for AI agents and development tools. It is indexed under PaaS & Hosting.","source":"https://fly.io","question":"What is Fly.io?","confidence":0.6},{"answer":"Fly.io offers a free tier, so you can start without paying. Paid plans start at $29 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://fly.io","question":"Is Fly.io free?","confidence":0.6},{"answer":"Fly.io supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://fly.io","question":"What platforms does Fly.io support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Fly.io, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://fly.io","question":"Can Fly.io be self-hosted?","confidence":0.6},{"answer":"We have confirmed 8 integrations for Fly.io, including Sentry, Supabase, Upstash, LiteFS, Tigris, OpenRouter, GitHub and Slack. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://fly.io","question":"What does Fly.io integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, ISO 27001 and HIPAA for Fly.io. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Fly.io not holding them. Always confirm compliance directly before you rely on it.","source":"https://fly.io/security","question":"What security certifications does Fly.io have?","confidence":0.7},{"answer":"Fly.io is available worldwide. Its primary market is the United States.","source":"https://fly.io","question":"Where is Fly.io available?","confidence":0.75}]` | `[{"answer":"A cloud-based application platform that enables developers to build, run, and scale web applications using managed infrastructure and integrated deployment tools. Supports multiple programming languages and frameworks with Git-based deployment. It is indexed under PaaS & Hosting.","source":"https://www.heroku.com/blog/dynos-pricing-ga/","question":"What is Heroku?","confidence":0.6},{"answer":"Heroku supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.heroku.com/blog/dynos-pricing-ga/","question":"What platforms does Heroku support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Heroku, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://www.heroku.com/blog/dynos-pricing-ga/","question":"Can Heroku be self-hosted?","confidence":0.6},{"answer":"We have confirmed 3 integrations for Heroku, including GitHub, Twilio and Salesforce. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.heroku.com/blog/dynos-pricing-ga/","question":"What does Heroku integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2 and ISO 27001 for Heroku. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Heroku not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.heroku.com/security","question":"What security certifications does Heroku have?","confidence":0.7},{"answer":"Heroku is available worldwide. The vendor is headquartered in the United States.","source":"https://www.heroku.com/blog/dynos-pricing-ga/","question":"Where is Heroku available?","confidence":0.75}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | A cloud service offering hardware-isolated Linux virtual machines optimized for running AI agents and tools, featuring persistent storage, checkpoint and rollback capabilities, and API gateway-based credential management. | A cloud-based application platform that enables developers to build, run, and scale web applications using managed infrastructure and integrated deployment tools. Supports multiple programming languages and frameworks with Git-based deployment. |
| features.capabilities | `{"hosting":"cloud","regions":"multi","runtimes":"Docker containers, Node.js, Deno, and other containerized runtimes","rollbacks":true,"autoscaling":"horizontal","cli_and_api":true,"env_secrets":true,"build_system":"dockerfile","container_deploy":true,"managed_databases":true,"custom_domains_tls":true}` | `{"hosting":"cloud","regions":"multi","runtimes":"Node.js, Python, Ruby, Java, Go, Scala, PHP","rollbacks":true,"autoscaling":"horizontal","cli_and_api":true,"env_secrets":true,"build_system":"buildpacks","git_push_deploy":true,"preview_deploys":true,"container_deploy":true,"managed_databases":true,"custom_domains_tls":true}` |
| integrations.count | 4 | 6 |
| integrations.list | `[{"name":"Sentry"},{"name":"Supabase"},{"name":"Upstash"},{"name":"LiteFS"},{"name":"Tigris"},{"name":"OpenRouter"},{"name":"GitHub"},{"name":"Slack"},{"name":"HTTP API","native":true}]` | `[{"name":"GitHub"},{"name":"Twilio"},{"name":"Salesforce"},{"name":"Travis CI","native":false,"category":"ci"},{"name":"RabbitMQ","native":false,"category":"messaging"},{"name":"Apigee","native":false,"category":"api"},{"name":"Heroku Postgres","native":true,"category":"database"}]` |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"usage","plans":[{"free":false,"name":"Pay-as-You-Go","summary":"Pay only for what you use","features":["Micro VMs","Persistent storage","Private networking","Unlimited users per organization"],"description":"Usage-based pricing for Micro VMs and persistent storage","contactSales":false},{"free":false,"name":"Serious Support","summary":"Starting at $29/month","features":["Dedicated support team"],"commitment":"monthly","components":[{"kind":"fixed","amount":29,"period":"month","currency":"USD"}],"description":"Access to dedicated team of engineers","contactSales":false},{"free":false,"name":"HIPAA Compliance","summary":"$99/month","features":["HIPAA-compliant workloads","BAAs","SOC2 certification"],"commitment":"monthly","components":[{"kind":"fixed","amount":99,"period":"month","currency":"USD"}],"description":"Compliance package for HIPAA-regulated workloads","contactSales":false},{"free":false,"name":"Machine Reservation","summary":"Save 40% with upfront commitment","features":["40% discount vs pay-as-you-go"],"commitment":"annual","description":"Prepay for infrastructure and receive 40% discount","contactSales":false},{"free":false,"name":"Enterprise","summary":"Contact sales for pricing","features":["Custom resource configurations","SLA requirements","Emergency support"],"description":"Custom solutions for larger workloads with SLA requirements","contactSales":true}],"summary":"Usage-based pricing (pay-as-you-go) with optional prepayment for 40% discount. Serious Support from $29/month. HIPAA compliance at $99/month. Enterprise available via contact.","currency":"USD","sourceUrl":"https://fly.io","retrievedAt":"2026-08-01T15:17:23.873Z","startingPrice":{"amount":29,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"subscription","plans":[{"free":true,"name":"free","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Sleeping dynos with up to 18 hours of monthly activity, automatic sleep and recharge cycles"},{"free":false,"name":"hobby","components":[{"kind":"per_unit","unit":"dyno","amount":7,"period":"month","currency":"USD"}],"description":"512MB RAM dyno with 24/7 uptime, single dyno per process type"},{"free":false,"name":"standard-1x","components":[{"kind":"per_unit","unit":"dyno","amount":25,"period":"month","currency":"USD"}],"description":"512MB RAM professional dyno with auto-scaling, metrics, preboot, and fast builds"},{"free":false,"name":"standard-2x","components":[{"kind":"per_unit","unit":"dyno","amount":50,"period":"month","currency":"USD"}],"description":"1GB RAM professional dyno with auto-scaling and all standard features"},{"free":false,"name":"performance","components":[{"kind":"fixed","amount":500,"period":"month","currency":"USD"}],"description":"Isolated dyno for high-traffic applications requiring dedicated resources and consistent performance"}],"summary":"From $7/month for hobby tier, with free tier available","currency":"USD","freeTier":true,"sourceUrl":"https://www.heroku.com/blog/dynos-pricing-ga/","retrievedAt":"2026-10-13T10:37:07.139Z","startingPrice":{"amount":500,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | unknown | high |
| pricing.starting_price | - | `{"amount":500,"currency":"USD"}` |
| pricing.transparent | no | yes |
| reliability.sla_pct | 99.9 | - |
| reliability.status_page | yes | yes |
| security.disclosure_policy | - | yes |
| security.hipaa | yes | yes |
| security.iso27001 | yes | yes |
| security.pci | - | yes |
| security.soc2 | yes | yes |
| security.trust_center | https://fly.io/blog/trust-calibration-for-ai-software-builders/ | https://www.heroku.com/blog/security-rails-active-storage/ |

## Capabilities (PaaS & Hosting)

| Capability | Fly.io | Heroku |
|---|:--:|:--:|
| **Deploy** |  |  |
| Git-push auto-deploy | - | ✓ |
| Deploy arbitrary container image | ✓ | ✓ |
| Per-PR preview environments | - | ✓ |
| **Build** |  |  |
| Build system | Dockerfile | Buildpacks |
| Runtime / language breadth | Docker containers, Node.js, Deno, and other containerized runtimes | Node.js, Python, Ruby, Java, Go, Scala, PHP |
| **Scale** |  |  |
| Autoscaling | Horizontal | Horizontal |
| **Deployment** |  |  |
| Geographic reach | Multi-region | Multi-region |
| Hosting | Cloud only | Cloud only |
| **Data** |  |  |
| Bundled managed data services | ✓ | ✓ |
| **Delivery** |  |  |
| Built-in global CDN / edge | - | - |
| Custom domains + automatic TLS | ✓ | ✓ |
| **Ops** |  |  |
| Env vars & secrets management | ✓ | ✓ |
| Instant rollbacks | ✓ | ✓ |
| **Extensibility** |  |  |
| CLI + deploy API | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T21:32:49.475Z. "-" = undocumented, not absent.*