# Dokku vs Fly.io

**Leader by Vioscale score:** Fly.io

| Attribute | Dokku | Fly.io |
|---|---|---|
| **Vioscale score** | 61.1 (42% (low)) | 79 (63% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 20 | - |
| adoption.github_stars | 32,110 | - |
| deployment.options | `{"on_prem":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | Dokku allows developers to build and manage application lifecycles through Git-based deployments to a single server. Applications are automatically built using Dockerfiles or language detection with buildpacks, run in isolated containers, and are managed by Dokku's routing and process control systems. | Fly.io Sprites are dedicated virtual machines that provide hardware-isolated Linux environments for AI agents, tools, and evaluations. They feature persistent block storage that survives sleep cycles, automatic checkpointing, and support for executing untrusted code with configurable network policies. |
| features.capabilities | `{"hosting":"self","regions":"single","edge_cdn":false,"runtimes":"Multiple languages via Heroku buildpack auto-detection","rollbacks":false,"autoscaling":"none","cli_and_api":true,"env_secrets":true,"build_system":"buildpacks","git_push_deploy":true,"preview_deploys":false,"container_deploy":true,"managed_databases":false,"custom_domains_tls":true}` | `{"hosting":"cloud","regions":"multi","runtimes":"Docker containers, Node.js, Deno, and other containerized runtimes","cli_and_api":true,"build_system":"dockerfile","container_deploy":true,"managed_databases":true,"custom_domains_tls":true}` |
| integrations.count | 3 | 5 |
| integrations.list | `[{"name":"Docker"},{"name":"Heroku Buildpacks"},{"name":"nginx"}]` | `[{"name":"Sentry"},{"name":"Supabase"},{"name":"Upstash"},{"name":"LiteFS"},{"name":"Tigris"}]` |
| language.primary | Shell | - |
| license.spdx | MIT | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"linux":true}` | `{"cli":true,"web":true,"linux":true}` |
| pricing | `{"type":"open_source","plans":[{"free":true,"name":"Open Source","features":["Git push deployment","Buildpack/Dockerfile support","Docker container management","Environment variables","Domain/SSL configuration","Process management","Cron tasks","Persistent storage","Plugin extensibility"],"description":"Full Dokku platform"}],"summary":"Free open source. Dokku Pro available (pricing not disclosed).","freeTier":true,"sourceUrl":"https://dokku.com","retrievedAt":"2026-08-03T22:43:50.078Z"}` | `{"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"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | commercial |
| pricing.price_level | free | unknown |
| pricing.transparent | yes | yes |
| release.cadence_days | 1 | - |
| release.history | `[{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.27","date":"2026-08-12T09:28:41Z","type":"stable","version":"v0.38.27"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.26","date":"2026-08-09T06:27:30Z","type":"stable","version":"v0.38.26"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.25","date":"2026-07-22T07:42:22Z","type":"stable","version":"v0.38.25"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.24","date":"2026-07-18T04:28:27Z","type":"stable","version":"v0.38.24"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.23","date":"2026-07-18T01:37:20Z","type":"stable","version":"v0.38.23"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.22","date":"2026-07-08T22:53:02Z","type":"stable","version":"v0.38.22"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.21","date":"2026-07-07T00:21:50Z","type":"stable","version":"v0.38.21"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.20","date":"2026-06-28T07:17:12Z","type":"stable","version":"v0.38.20"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.19","date":"2026-07-07T00:23:10Z","type":"stable","version":"v0.38.19"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.18","date":"2026-07-07T00:22:24Z","type":"stable","version":"v0.38.18"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.17","date":"2026-06-03T08:34:30Z","type":"stable","version":"v0.38.17"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.16","date":"2026-06-01T02:22:41Z","type":"stable","version":"v0.38.16"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.15","date":"2026-05-31T09:19:37Z","type":"stable","version":"v0.38.15"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.14","date":"2026-05-31T02:18:36Z","type":"stable","version":"v0.38.14"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.13","date":"2026-05-30T11:43:16Z","type":"stable","version":"v0.38.13"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.12","date":"2026-05-30T04:15:28Z","type":"stable","version":"v0.38.12"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.11","date":"2026-05-30T01:30:55Z","type":"stable","version":"v0.38.11"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.10","date":"2026-05-29T23:48:35Z","type":"stable","version":"v0.38.10"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.9","date":"2026-05-28T16:44:20Z","type":"stable","version":"v0.38.9"},{"url":"https://github.com/dokku/dokku/releases/tag/v0.38.8","date":"2026-05-28T16:44:03Z","type":"stable","version":"v0.38.8"}]` | - |
| reliability.sla_pct | - | 99.9 |
| reliability.status_page | - | yes |
| security.hipaa | - | yes |
| security.iso27001 | - | yes |
| security.scorecard | 5.3 | - |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fdokku%2Fdokku%2Fplugins%2Fcommon&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (PaaS & Hosting)

| Capability | Dokku | Fly.io |
|---|:--:|:--:|
| **Deploy** |  |  |
| Git-push auto-deploy | ✓ | - |
| Deploy arbitrary container image | ✓ | ✓ |
| Per-PR preview environments | ✗ | - |
| **Build** |  |  |
| Build system | Buildpacks | Dockerfile |
| Runtime / language breadth | Multiple languages via Heroku buildpack auto-detection | Docker containers, Node.js, Deno, and other containerized runtimes |
| **Scale** |  |  |
| Autoscaling | None | - |
| **Deployment** |  |  |
| Geographic reach | Single-region | Multi-region |
| Hosting | Self-hosted 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: Vioscale. Generated 2026-09-01T17:10:17.856Z. "-" = undocumented, not absent.*