Fly.io vs Heroku: what each really costs
Team size
Billing
Fly.io
No plan for this billing option
No paid plan to compare for this billing option.
Heroku
No plan for this billing option
No paid plan to compare for this billing option.
| 10 people | Fly.io | Heroku |
|---|---|---|
| Entry paid plan | No plan for this billing option | No plan for this billing option |
| Vendor price | ||
| Monthly cost | ||
| Annual cost | ||
| Per user / year | ||
| Billing commitment | Not recorded | Not recorded |
| Minimum seats | None stated | None stated |
| Free plan | No free plan listed | No free plan listed |
| Free trial | Not stated | Not stated |
Calculated by SpecEntry from official vendor prices. Taxes and optional add-ons are not included. Open each product page for every plan and the official source.
Fly.io vs Heroku: features
Key features as each vendor lists them. A feature missing from a list does not mean the product lacks it.
Fly.io
- Fly MachinesHardware-virtualized containers that launch instantly and run on demand.
- Isolated sandboxesHardware-isolated sandboxes for running untrusted or AI-generated code.
- Sprites environmentsEach Sprite is a self-contained environment ready in under a second.
- Checkpoint and restoreCheckpoint an entire environment and restore it after breaking changes.
- NVMe and object storageLocal NVMe for low latency plus global durable object storage.
- Agent-ready CLIs and MCPCLIs and MCP servers designed to be driven by AI agents.
- KVM hardware isolationApps run KVM hardware-isolated on Fly.io's own hardware.
Source:fly.io ·
Heroku
- DynosApps run in managed containers called dynos.
- Heroku PostgresFully managed PostgreSQL database as a service.
- Instant rollbackRoll back code or Postgres data to an earlier state.
- Heroku MetricsShows runtime metrics for your applications.
- Heroku FlowVisual continuous delivery for app releases.
- BuildpacksCustomize your stack with buildpacks.
- ComplianceMaintains PCI, HIPAA, ISO and SOC compliance.
- Managed AI models and MCPAccess AI models and extend agents via Model Context Protocol.
Source:heroku.com ·
Fly.io vs Heroku pricing questions
How much do Fly.io and Heroku cost?
Fly.io paid plans start at $2.19 per month ($0.0030/hr), billed per second (Machine shared-cpu-1x 256MB). Heroku paid plans start at $5 per month for 1,000 eco dyno hours, personal accounts only (Eco Dynos).