Fly.io
A platform that runs applications as lightweight VMs called Machines across global regions, with Fly Volumes for persistence and a first-party Managed Postgres service.
How Claude rates Fly.io.
Each score below is the model's own, on the rubric it wrote for that list, from what it already knows about Fly.io. Nothing here is edited by us.
The best managed hosting for indie SaaS
#10 this week, scoring 6.8 out of 10. Best for Developers comfortable with Docker who need global distribution and want more control than traditional PaaS offers.
- Deployment simplicity 7
- Requires Dockerfile and fly.toml configuration, though CLI guides you through initial setup reasonably well.
- Database & stateful services 6
- Postgres runs as regular Fly Machines requiring manual setup of replication and backups, less automated than competitors.
- Pricing predictability 6
- Usage-based pricing for bandwidth and resources can lead to unexpected bills, requires monitoring to predict costs.
- Performance & reliability 8
- Excellent performance with global edge deployment and bare-metal infrastructure, though complexity increases with scale.
- Developer experience 8
- Powerful CLI with excellent documentation, good logging, and SSH access to machines for debugging.
- Portability & lock-in 8
- Standard Docker containers and PostgreSQL make migration straightforward, minimal platform lock-in.
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What Fly.io's website sends to your browser.
Scanned 2026-08-25. Grade headers C, scoring 60 out of 100.
This is one narrow, automated check of the HTTP response headers on the vendor's own website. It says nothing about how the product itself is built, how it stores your data, or whether it has ever been audited. A good grade here is a small signal that somebody was paying attention.