Firebase
vs
Fly.io
What's good about each
- Free Spark plan with no payment method needed
- Realtime sync in Firestore and Realtime Database
- SDKs for iOS, Android, web, Flutter and Unity
- Crashlytics, Analytics and Cloud Messaging at no cost
- Runs on Google Cloud in 40+ locations
- Excellent tooling and developer experience
- Fast deployments, scale to zero, little config needed
- Per-second billing, with a 40% discount for reserved compute blocks
- Anycast networking and global load balancing included at no extra cost
Price comparison
Closest matching configuration on each side, monthly list price in USD.
| Service | Firebase | Fly.io | Difference |
|---|---|---|---|
| Small VM | -- Not listed | $5.70 /mo 1 vCPU, 1 GB RAM (shared-cpu-1x) | |
| Medium VM | -- Not listed | $42.79 /mo 4 vCPU, 8 GB RAM (shared-cpu-4x) | |
| Large VM | -- Not listed | $248.00 /mo 8 vCPU, 16 GB RAM (performance-8x) | |
| Block storage | -- Not listed | $15.00 /mo 100 GB | |
| Object storage | $39.24 /mo 1 TB stored, 250 GB egress, 1M download + 100k upload operations | $20.50 /mo 1 TB (Tigris) | 48% cheaper on Fly.io |
| PostgreSQL | -- Not listed | $86.00 /mo 2 vCPU, 2 GB RAM, 50 GB storage (Starter) | |
| Redis | -- Not listed | $20.00 /mo 1 GB data (Upstash Fixed 1GB) | |
| Load balancer | -- Not listed | Included with apps | |
| Serverless | $44.66 /mo 25M invocations, 512 MB RAM, 150 ms duration · $0.40 / 1M invocations + Cloud Run CPU and memory rates | -- Not listed | |
| Egress allowance | 360 MB/day on Hosting (~10 GB/mo) | -- Not listed | |
| Egress | $150.00 /TB $0.15 / GB (Hosting) | $20.00 /TB $0.02 / GB (North America and Europe) | 87% cheaper on Fly.io |
Heads up: Figures take each provider's closest plan to a common setup, and vary by region and usage. Hover a service for the reference configuration. Verify before provisioning. More on how we price.
Services
Managed services each provider offers.
Compliance
Frameworks each provider states on its own site, each linked to its source.
| Framework | Firebase | Fly.io |
|---|---|---|
| SOC 2 | Type II | Type II |
| ISO 27001 | Yes | Data centers only |
| HIPAA | -- | Yes |
| GDPR | Yes | Yes |
| PCI DSS | Some Firebase services only | -- |
Heads up: Each entry links to the provider's own statement. An attestation can cover one tier, one region or the platform alone rather than every service. Verify the scope before you rely on it. A dash means we found nothing to link to, not that the provider lacks it.
Company details
| Fact | Firebase | Fly.io |
|---|---|---|
| Founded | 2011 | 2017 |
| Headquarters | USA | USA |
| Locations | 42 | 18 |
| Example customers | The New York Times, Duolingo, Venmo, Trivago, Ctrip, Gameloft | Cars.com, Fanatics, Tailscale, Supabase |
| Website | firebase.google.com | fly.io |
Alternatives to consider
Compare Firebase and Fly.io against other cloud providers.
Our data for Firebase was last updated on Sept. 18, 2026, and for Fly.io on Sept. 18, 2026.