FL
Fly.io
Per-second Machines billing with real auto-stop savings when idle.
Deploys actual VMs ('Machines') at the edge in dozens of regions, billed per second — and Machines can auto-stop when idle, so a low-traffic app can cost close to nothing.
Best for
Apps that need to run close to users globally, or that genuinely sleep when idle.
How it bills
Per-second Machines billing on vCPU and RAM, with real auto-stop savings on idle.
Strengths
- +Genuine multi-region edge deployment
- +Auto-stop meaningfully cuts cost for bursty apps
Trade-offs
- −No official pricing API
- −Per-second billing can be harder to budget upfront