Model
Pure pay-as-you-go, metered. No named tiers. From the pricing page: "pick and choose which pieces you need." The philosophy is cloud-pricing (AWS / GCP / DO), not builder-pricing (Replit / Anything.com).
Billable components
| Component | How it's billed | Rate visible? |
|---|---|---|
| Micro VMs (compute) | Metered | ❌ Not on page — calculator only |
| Persistent storage | Metered | ❌ |
| GPUs | Metered | ❌ |
| Managed Postgres | Metered (compute + storage) | ❌ |
| Bandwidth | Assumed metered | ❌ |
Specific per-second / per-GB rates are not on the pricing page — users must either use the calculator or read individual product pages.
actual dollar amounts. The pricing page links to a calculator but doesn't publish the rate card. This is a deliberate choice — competitors like Railway and Render publish the rate card directly. Fly.io's calculator-first model likely filters for buyers willing to engage, but it also creates pricing friction for indie devs comparison-shopping.
Known discounts + add-ons
- Machine Reservations — 40% off. "Get 40% off by making a machine reservation." Targeted at steady-state workloads. Competitive with Reserved Instances pricing on AWS/GCP.
- Compliance package — $99/mo. HIPAA compliance add-on. Specific, cheap, and pitched at startups in regulated verticals (health-tech especially).
- Support plans — starts $29/mo. "Access to our dedicated team of engineers." Enterprise support custom via
[email protected]. - Accidental deployment protection — paid-support customers get unintended charges waived. Nice risk-mitigation detail.
Free tier
Referenced obliquely: "all Fly.io users" get something (exact scope not captured). Historically Fly had a free Machines quota for small workloads. Not confirmed current from the captured content.
current free-tier bounds.
Enterprise
Custom configurations, SLA requirements, emergency support. Contact-sales model. No public pricing.
Versus the builder category
| Axis | Fly.io | Replit | Anything.com |
|---|---|---|---|
| Model | Pure metered | Tiered + credit bucket | Tiered + credit bucket + Max add-on |
| Free tier | ✅ (scope unclear) | ✅ Starter | ✅ Free Credits |
| Upgrade framing | Volume discount (reservations) | Feature gate (Core) | Autonomy gate (Max) |
| Pricing transparency | Calculator-only | Published | Published |
| Enterprise | Contact sales | Explicit tier + logos | Absent |
Takeaway: Fly.io sells compute; Replit / Anything.com sell time-saved. Pure metered pricing works for infrastructure buyers who know what they need. It doesn't work for indie makers trying to estimate what "one app" will cost. This is a structural reason Fly isn't a Replit competitor — the pricing model can't serve the maker ICP.
Sources
- fly.io/pricing — fetched 2026-04-23