Fly.io vs Koyeb
A detailed comparison to help you choose between Fly.io and Koyeb.
Quick Verdict
4.2/5
Fly.io
191 reviews
3.6/5
Koyeb
341 reviews
Fly.io is rated higher (4.2 vs 3.6). Fly.io runs Docker containers on bare metal in 35+ cities globally. Machines run close to users — sub-50ms latency from most locations. Supports any language and framework. Koyeb is a developer-friendly serverless platform that deploys apps at the edge globally using just Docker or Git. Supports any language and framework. Free tier for small apps.
Fly.io Deploy apps globally with sub-50ms latency | Koyeb Serverless PaaS with global edge deployment | |
|---|---|---|
| Overview | ||
| Rating | 4.2 (191 reviews)✓ | 3.6 (341 reviews) |
| Pricing model | freemium | freemium |
| Starting price | Free tier available | Free tier available |
| Best for | Latency-sensitive applications — APIs, real-time apps, and globally distributed backends | Developers wanting a simple global deployment platform with edge presence and Docker support |
| Specifications (entry plan) | ||
| CPU cores | 1 vCPU | — |
| RAM | 0.3 GB | — |
| Storage | 0 GB | — |
| Bandwidth | 0 TB/mo | — |
| SLA uptime | 99.9% | — |
| Data-center count | 35 | — |
| €/vCPU/mo | €0.00 | — |
| €/GB RAM/mo | €0.00 | — |
| Features | ||
| IPv6 | ✓ | |
| DDoS protection | ||
| Automated backups | ||
| Snapshots | ||
| Managed option | ||
| Bare metal | ||
| GPU available | ||
| S3-compatible | ||
| Hourly billing | ✓ | |
| Free tier | ✓ | |
| Data-center locations | ||
| Regions | United StatesUnited KingdomGermanyFranceNetherlandsSingapore+5 | — |
| Tags | ||
| Tags | free tiermanaged optionipv6eu datacenterus datacenterapac datacenterapi accessprivate networking | free tiermanaged optioneu datacenterus datacenterapac datacenter |
| Visit Fly.io → | Visit Koyeb → | |
Fly.io
Pros
- + 35+ global cities — widest edge deployment network
- + Bare metal performance in a PaaS wrapper
- + Persistent volumes and managed PostgreSQL included
Cons
- - CLI-heavy — less visual than Render
- - Learning curve for networking concepts
- - Documentation occasionally outdated
Koyeb
Pros
- + Global edge deployment in minutes
- + Any language via Docker
- + Free tier available
Cons
- - Newer platform — smaller community
- - Less documentation than Render
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