Head-to-head, indicative as of Oct 2026. Prices change — always confirm on the vendor page.
Quick read: pick Fly.io if your workload is apps that need to be close to users everywhere and its included egress fits your traffic shape; pick Azure Container Apps if you need teams already in the azure/microsoft orbit. For anything latency-sensitive at the edge, cold start row is the tiebreaker.
| Fly.io | Azure Container Apps | |
|---|---|---|
| Type | Global VM platform | Container platform (serverless) |
| Free tier | Small allowances on paid plan | First 180k vCPU-hrs free |
| Paid pricing (indicative) | Pay-as-you-go from ~$2/mo per VM | Consumption-based per vCPU/GB-s |
| Egress | Free tier then billed | ~$0.087/GB (billed) |
| Cold start | ~300ms (Firecracker VMs) | ~1-2s cold |
| Regions | 30+ regions | Azure regions worldwide |
| Best for | Apps that need to be close to users everywhere | Teams already in the Azure/Microsoft orbit |
Try Fly.io Try Azure Container Apps
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Last reviewed 2026-10-02 · NinjaOps SEO grid · DevOps blog