Fly.io
Snyk
| Feature | Fly.io | Snyk |
|---|---|---|
| Pricing | Free / from $0/mo | Free / from $25/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.2 / 5 | 4.4 / 5 |
| Best For | full-stack-developers, global-apps, edge-computing, hobby-projects | development-teams, security-engineers, devops-teams, open-source-maintainers |
| Founded | 2017 | 2015 |
| Global Deployment | ✓ | ✗ |
| Firecracker Vms | ✓ | ✗ |
| Fly Postgres | ✓ | ✗ |
| Auto Scaling | ✓ | ✗ |
| Volumes | ✓ | ✗ |
| Private Networking | ✓ | ✗ |
| Gpu Support | ✓ | ✗ |
| Sca Scanning | ✗ | ✓ |
| Sast | ✗ | ✓ |
| Container Scanning | ✗ | ✓ |
| Iac Scanning | ✗ | ✓ |
| Auto Fix Prs | ✗ | ✓ |
| Sbom Generation | ✗ | ✓ |
| License Compliance | ✗ | ✓ |
✓ Fly.io Pros
- Deploy apps globally to 30+ regions easily
- Built-in Postgres and Redis for data at the edge
- Generous free tier for hobby projects
- Firecracker VMs start in milliseconds
✗ Fly.io Cons
- Operational complexity for simple apps
- Documentation can be hard to navigate
- Billing surprises if auto-scaling triggers unexpectedly
✓ Snyk Pros
- Developer-first approach integrates into existing workflows
- Automatic fix pull requests for known vulnerabilities
- Comprehensive coverage (code, deps, containers, IaC)
- Generous free tier for individual developers
✗ Snyk Cons
- Per-developer pricing expensive for large teams
- False positives require manual review
- Some language support more mature than others
The Verdict
Fly.io is built for full stack developers and global apps, with a focus on global-deployment and firecracker-vms. Snyk targets development teams and security engineers and leads with sca-scanning and sast.
On pricing, Fly.io is the clear winner for budget-conscious users — starting at $0/mo compared to $25/mo for Snyk. That $25/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.