Fly.io
Vercel
Fly.io
Vercel
Fly.io
Vercel
No signals
Fly.io
Vercel
No signals
Fly.io
Vercel
Fly.io
No signals
Vercel
Fly.io
No signals
Vercel
Fly.io
No signals
Vercel
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
Users: 1 user
Storage: N/A
Limits: No commercial use, Single user only, 10-second function timeout, No team collaboration, No analytics, Community support only
Users: Per team member
Storage: N/A
Limits: No SSO/SAML, No SLA, No dedicated support, Enterprise security features locked, $20/user minimum for teams
Users: Unlimited
Storage: Custom
Limits: Requires sales call, Complex procurement, Long contract negotiations, Not suitable for small teams
| Feature | Fly.io | Vercel |
|---|---|---|
| Performance | ||
| Global edge deployment 35+ regions | ||
| Auto-scaling | ||
| Deployment | ||
| Git Push to Deploy Automatic deployments from GitHub/GitLab/Bitbucket | ||
| Preview Deployments Unique URL for every PR, excellent for code review | ||
| Instant Rollbacks One-click rollback to any previous deployment | ||
| Infrastructure | ||
| Firecracker micro-VMs | ||
| Pricing | ||
| Per-second billing | ||
| Billing alerts Not supported | ||
| Commercial Use Free Tier Hobby plan prohibits commercial use | ||
| Networking | ||
| Private networking WireGuard | ||
| Custom domains | ||
| Serverless | ||
| Edge Functions Run code at edge locations globally | ||
| Serverless Functions Node.js, Python, Go, Ruby supported | ||
| Databases | ||
| Managed Postgres Reliability issues reported | ||
| Features | ||
| GPU support For ML workloads | ||
| Built-in queues/workers Manual setup required | ||
| Security | ||
| Automatic HTTPS SSL certificates managed automatically | ||
| Password Protection Pro plan feature for preview protection | ||
| SSO/SAML Enterprise plan only | ||
| Domains | ||
| Custom Domains Connect your own domain, DNS management available | ||
| Configuration | ||
| Environment Variables Secure secrets management per environment | ||
| Monitoring | ||
| Analytics Web analytics on Pro plan and above | ||
| Backend | ||
| Managed Databases Vercel Postgres available but limited | ||
| Background Jobs Not supported - use external services | ||
| Reliability | ||
| SLA Guarantee 99.99% SLA on Enterprise only | ||
| Billing | ||
| Real-time Cost Monitoring Limited visibility into usage costs | ||