Render vs Fly.io
A side-by-side, data-driven comparison of Render and Fly.io — pricing, free tiers and capabilities.
Render is the click-to-deploy option with managed Postgres in one place; Fly is CLI-first and multi-region, better when low latency across geographies matters more than simplicity.
At a glance
- Render has a free tier — note: Free instance spins down after ~15 min idle (not always-on, ~1 min cold start) and is capped at 750 instance-hours/month per workspace — fine for demos, not 24/7 production; Fly.io does not.
- At a medium always-on instance, Render is ~$25/mo vs Fly.io ~$10.7/mo — Fly.io is the cheaper estimate.
Specs side by side
Estimated cost
Estimated monthly cost of a single always-on service — estimates, not quotes. Try the calculator for your own traffic. “—” means no verified price for that tier.
| Render | Fly.io | |
|---|---|---|
| Small (~0.5 vCPU / 512MB–1GB) | $7 | $5.7 (lower) |
| Medium (~1 vCPU / 2GB) | $25 | $10.7 (lower) |
| Large (~2 vCPU / 4GB) | $85 | $21.4 (lower) |
| Egress ($/GB) | $0.15 | $0.02 (lower) |
Pros & cons
Our editorial assessment — not vendor-stated facts. Last reviewed 2026-07-16.
Render
Pros
- Low-ops developer experience — deploy full-stack apps from Git with minimal configuration
- Broad coverage in one platform: apps, workers, cron jobs, static sites, durable workflows, and managed databases
- Per-service compute plans billed by the second, keeping costs proportional to actual usage per workload
- Managed networking, TLS, preview environments, and autoscaling included without extra setup
Cons
- No general-purpose HTTP serverless/functions product (no AWS Lambda-style FaaS); that remains a planned feature request with no committed timeline. Render Workflows adds durable, scale-to-zero background execution but is an orchestration product, not a Lambda replacement for request-driven code
- Limited regional footprint (Oregon, Ohio, Virginia, Frankfurt, and Singapore) with per-region private networks and no cross-region private networking, global load balancing, or automatic cross-region failover
- Managed databases are limited to Postgres and Redis-compatible Key Value, with less low-level infrastructure control than AWS or GCP and no bring-your-own-cloud option
- Free-tier web services spin down after 15 minutes of inactivity (cold start on the next request) and free Postgres databases expire 30 days after creation (deleted after a short grace period); total cost can climb as you add more paid services
Fly.io
Pros
- Runs full Docker containers globally, not just functions, so it fits stateful and long-running apps
- CLI- and config-driven workflow makes provisioning multi-region deployments straightforward
- Usage-based billing charged per second, with no required monthly plan commitment
- Places compute close to users, which suits latency-sensitive applications
- Includes stateful primitives (volumes, managed Postgres, private networking) that many edge/PaaS platforms lack
Cons
- Has had publicized reliability incidents in recent years (some community reports attribute past outages to internal service-discovery systems); check Fly's status page and recent incident history before committing
- Uptime SLA is offered only to Enterprise-plan customers; standard pay-as-you-go usage carries no contractual uptime guarantee
- Billing can be hard to predict once you scale across instances and regions, and some users report unexpected charges
- CLI- and config-first, region-centric model has a steeper learning curve than conventional click-to-deploy PaaS
Bottom line
Pick Render for teams leaving Heroku that want managed DB + services in one place. Pick Fly.io for latency-sensitive apps that need multi-region by default.
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Frequently asked questions
- What is the difference between Render and Fly.io?
- Render: A managed cloud for web services, static sites, cron jobs and managed Postgres/Redis, widely recommended as the closest modern Heroku swap. Fly.io: Runs full-stack apps and Docker containers as lightweight VMs in many regions, with a focus on low-latency, globally-distributed deployments.
- Is Render or Fly.io cheaper?
- For a medium always-on instance, Render is about $25/mo and Fly.io about $10.7/mo, so Fly.io is the cheaper estimate. Actual cost depends on your usage — try the calculator.
- Does Render have a free tier?
- Yes. Free instance spins down after ~15 min idle (not always-on, ~1 min cold start) and is capped at 750 instance-hours/month per workspace — fine for demos, not 24/7 production.
- Does Fly.io have a free tier?
- No.
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