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Head-to-head

Render vs Fly.io

Two hosts, side by side. Pricing, features, and the trade-offs that actually matter.

Render from Free

Heroku alternative with predictable per-service pricing.

HQ US · founded 2018
Fly.io from Free

Run small full-stack apps in dozens of regions for genuinely low cost — when it works.

HQ US · founded 2017

Quick verdict

Cheapest: Fly.io wins on entry price (Free vs Free).
More features: Fly.io ships more first-party platform features out of the box.
Region: Render is HQ'd in US; Fly.io in US.

Cheapest plans, side by side

RenderFly.io
Entry planFree WebFree (3× shared-cpu-1x)
PriceFreeFree
CPU0.1 vCPU1 vCPU
RAM0.5 GB0.25 GB
Disk— GB3 GB
Bandwidth100 GB160 GB

Feature parity

RenderFly.io
Managed Postgres✓✓
Managed Redis✓✓
Object storage×✓
One-click apps✓×
Private network✓✓
IPv6×✓
DDoS protection✓✓
Snapshots×✓
Public API✓✓
Terraform×✓

Render pros

  • +Predictable per-service pricing instead of mystery usage bills
  • +Free tier for static sites and Postgres (with caveats)
  • +Supports cron jobs, background workers, private services

Render cons

  • −Free Postgres expires after 90 days unless upgraded
  • −Cold starts on the free web service tier are very real
  • −Free tier has been progressively trimmed since 2023; check current limits before betting on it

Fly.io pros

  • +35+ regions, deploy multi-region with one command
  • +Run any Docker image — no platform-specific buildpacks
  • +Generous always-free tier (3 small machines)

Fly.io cons

  • −Reliability has been bumpy across 2023–2025; status page tells the story
  • −Support is community-first — paid support tiers exist but are light
  • −Some primitives (volumes, secrets) have rough edges that bite production apps