Fly.io

Run your app close to your users

GrowingMed lock-in
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Pricing

Free tier

Usage-based

Adoption

→Stable

License

Proprietary

Data freshness

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Overview

What is Fly.io?

Fly.io is a platform for running full-stack apps and databases close to users globally. It deploys Docker containers as fast micro-VMs across 30+ regions, with built-in anycast networking, Postgres, and Redis. Designed for apps that need low latency at a global scale.

Key differentiator

“Run your app close to your users”

Capability profile

Strength Radar

30+ regionsDocker-based dep…Anycast networkingPersistent volumesManaged PostgresAuto-scaling

Honest assessment

Strengths & Weaknesses

↑ Strengths

30+ regions

Docker-based deploys

Anycast networking

Persistent volumes

Managed Postgres

Auto-scaling

Fit analysis

Who is it for?

✓ Best for

Developers needing global deployment, low-latency APIs, or running full-stack apps with persistent storage near users

✕ Not a fit for

Teams that don't need multi-region deployment or prefer simpler Git-push workflows

Cost structure

Pricing

Free Tier

Available

Starts at

Freemium

Model

Usage-based

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Alternatives

HerokuRailway

Next step

Get Started with Fly.io

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →