AWS
Fly.io
AWS
Fly.io
No signals
AWS
Fly.io
AWS
Fly.io
AWS
Fly.io
No signals
AWS
No signals
Fly.io
AWS
No signals
Fly.io
Users: N/A
Storage: 5GB S3, 30GB EBS
Limits: 12-month limit, only specific instance types, basic support only (documentation)
Users: N/A
Storage: EBS separate
Limits: Shared tenancy, basic support unless upgraded
Users: N/A
Storage: EBS separate
Limits: Each service billed separately
Users: Unlimited
Storage: N/A
Limits: Required for production SLAs, Developer/Business support discontinued Dec 2025
Users: 1 user
Storage: 3GB
Limits: Community support only, No billing alerts, Free allowances don't cap bills
Users: Unlimited
Storage: Usage-based
Limits: No priority support, No SLA, Complex pricing to predict
Users: Per org
Storage: Usage-based
Limits: Usage costs can still spiral unexpectedly
Users: Custom
Storage: Custom
Limits: Must negotiate pricing, Long contract terms typical
| Feature | AWS | Fly.io |
|---|---|---|
| Infrastructure | ||
| Compute (EC2) Industry-leading | ||
| Firecracker micro-VMs | ||
| Kubernetes (EKS) | ||
| 33 Global Regions | ||
| Performance | ||
| Global edge deployment 35+ regions | ||
| Auto-scaling | ||
| Storage | ||
| Object Storage (S3) 11 9s durability | ||
| Databases | ||
| Managed Databases (RDS) Multiple engines | ||
| Managed Postgres Reliability issues reported | ||
| Pricing | ||
| Per-second billing | ||
| Billing alerts Not supported | ||
| Simple Pricing Notoriously complex | ||
| Compute | ||
| Serverless (Lambda) | ||
| Networking | ||
| Private networking WireGuard | ||
| Custom domains | ||
| AI | ||
| AI/ML Services (Bedrock) | ||
| Features | ||
| GPU support For ML workloads | ||
| Built-in queues/workers Manual setup required | ||
| Security | ||
| 90+ Compliance Certifications | ||
| Support | ||
| Free Technical Support Requires paid plan | ||
