Should I use Fly.io or Railway for a container app?

It depends on what you mean by “container app,” but here’s the practical short version:

Use Fly.io if you want:

• More control over deployment geography: run apps close to users in multiple regions
• Docker-native hosting with good support for custom networking
• Low-latency global apps
• More infrastructure-style control without managing raw VMs

Best fit:

• APIs
• full-stack apps
• edge/global apps
• services that benefit from being near users
• apps you want to scale regionally

Use Railway if you want:

• The simplest developer experience
• Very fast setup
• Great for prototypes, internal tools, and small-to-medium apps
• Easy integration with databases and services
• A “deploy and forget” feel

Best fit:

• MVPs
• side projects
• typical web apps
• teams that value speed and convenience over fine-grained infra control

Rule of thumb

• Choose Railway if you want convenience and don’t care much about region placement.
• Choose Fly.io if you want more control, global deployment, or better performance tuning.

A few tradeoffs

Fly.io

Pros

• Global deployment options
• Strong container-first model
• Good for production apps with performance needs

Cons

• More operational complexity
• Networking/regions can be more confusing
• Slightly steeper learning curve

Railway

Pros

• Very easy to use
• Excellent developer experience
• Quickest path from container to live app

Cons

• Less control over infrastructure
• Less ideal for advanced networking or multi-region needs
• Can get limiting if your app grows in complexity

My recommendation

• For most small projects and MVPs: Railway
• For serious container apps with scaling or global latency concerns: Fly.io

If you want, I can give you a recommendation based on your specific app type — for example:

• backend API
• Next.js app
• worker/queue app
• database-backed service
• multi-region app