Backblaze vs Fly.io
Backblaze confirms 4 of the features we check on its own site; Fly.io confirms 5. Starting prices: Backblaze USD 7/mo · per TB, Fly.io USD 2/mo · per Machine.
Backblaze
Developers and AI/media teams needing low-cost S3-compatible object storage.
Watch out: Object storage only; egress beyond 3x storage is not free.
Fly.io
Developers running apps and AI agents on hardware-isolated VMs close to users.
Watch out: Support is paid by tier; standard first response is 36 hours.
| Overview & pricing | ||
|---|---|---|
| Category | Developer Tools & APIs | Developer Tools & APIs |
| Specialty | Cloud object storage | Cloud runtime |
| Based in | 🇺🇸 United States | 🇺🇸 United States |
| Best for | All sizes | All sizes |
| Starting price | USD 7/mo · per TB | USD 2/mo · per Machine |
| Free plan | Unconfirmed | Unconfirmed |
| Free trial | Unconfirmed | Unconfirmed |
| Features confirmed on each vendor’s site | ||
| Free tier for developers · Core features | ✓Start free today | ✓Start for free, pay as you grow |
| Monitoring / logs · Core features | Unconfirmed | ✓Monitoring listed as a feature |
| Choice of data regions · Core features | Unconfirmed | ✓Machines available in many regions |
| Usage-based billing · Core features | ✓Priced per TB/month, no minimum fees | ✓Compute billed by the second |
| Public documentation · Core features | ✓Technical documentation (Docs) | ✓Platform Docs linked |
| Public API · Platform | ✓S3-compatible object storage API | Unconfirmed |
| Integrations | ||
| Listed on its site | Unconfirmed | Unconfirmed |
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Every ✓ / ✕ comes from the vendor’s own website (sources on each product page). Unconfirmed means the site doesn’t say — not that the feature is missing.