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Dev Hosting comparison · 2026
Vercel edges out Fly.io in this Dev Hosting comparison, scoring 91 against 84 across our seven scored dimensions. Vercel leads on Ecosystem (90 vs 72). The two are closest on Scalability, where the gap is just 2 points. Both offer a free tier, making either a low-risk starting point. Use the radar chart and dimension table below to find which fits your specific priorities best.
Vercel
The frontend cloud — deploy Next.js in seconds
91/100
Fly.io
Run full-stack apps close to your users globally
84/100
Radar comparison
Vercel
91
Fly.io
84
Developer UX
CLI, dashboard, git-push deploys, and setup speed.
Performance
Cold start times, global CDN, and throughput.
Price / Value
Cost for typical workloads, free tier, and scaling costs.
Scalability
Auto-scaling, traffic spikes, and multi-region support.
Reliability
Uptime SLA, incident history, and monitoring tools.
Ecosystem
Integrations, add-ons, databases, and storage built-in.
Overall Score
Based on our independent scoring across 6 dimensions, Vercel scores 91/100 overall versus Fly.io's 84/100 — a 7-point margin. Vercel leads on Developer UX in particular. That said, Fly.io may still be the right choice if the dimensions where it scores higher match your specific priorities — the radar chart above shows the full profile side by side.
Both Vercel and Fly.io offer a free tier, so entry-level cost is not a differentiating factor. Compare the feature and usage limits of each free plan to see which gives you more headroom before a paid upgrade is needed.
Vercel scores higher on Developer UX — 96/100 versus 78/100 for Fly.io. If developer ux is your primary decision criterion, Vercel is the stronger choice in this head-to-head.
Switching between dev hosting tools is generally possible but involves migration effort: exporting your data or configuration from Vercel, re-importing or reconfiguring in Fly.io, and updating any API integrations or environment variables in your codebase. The effort scales with how deeply embedded the tool is in your stack. Test Fly.io on a non-production project first before migrating.
Vercel (91/100) is the better fit for teams who prioritise developer ux — its strongest dimension — and who want a free entry point. Fly.io (84/100) is the better fit for teams who prioritise performance and want a free entry point. If both dimensions matter equally, the overall score winner (Vercel) is the safer default choice.
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