Where it fits
Fly.io combines a deployment workflow with low-level control over Fly Machines. Applications run from container images, and teams can choose how machines start, scale and connect. This places it between a conventional VM service and a more opinionated application platform.
How pricing works
Machine CPU and memory, volumes, network traffic and managed services have separate charges. Persistent disks and multiple regions also change the architecture, not just the monthly total. An application that stops when idle has a different cost pattern from one that stays running.
Choosing a setup
Fly Managed Postgres is distinct from older self-managed Postgres setups on Fly Machines. Choose the database’s operational ownership deliberately. Fly.io fits container-based applications where location and machine behaviour are worth controlling.
