Cloudflare Developer Platform vs Fly.io: pricing, quotas & features (2025)

Workers, Pages, D1, R2, KV — edge-native serverless
vs. Run your app close to users, globally

Data sourced from vendor documentation · Last updated May 2026

Summary

Cloudflare Developer Platform and Fly.io are both hosting platforms, addressing the same core use case with different implementation philosophies and trade-offs. Both offer a free tier, making it easy to prototype without a credit card. Fly.io's paid plans start at $2/month, lower than Cloudflare Developer Platform's entry point at $5/month. Cloudflare Developer Platform has a broader documented feature set (18 vs 14 features). Budget-sensitive teams will find Fly.io easier to justify early on. All pricing and quota data below is sourced from Cloudflare Developer Platform and Fly.io's official documentation — not generated by AI or estimated.

Cloudflare Developer Platform vs Fly.io: Comparativa de precios, cuotas y características (2025)

En esta comparativa analizamos Cloudflare Developer Platform y Fly.io lado a lado — incluyendo precios mensuales, límites del tier gratuito, características técnicas, cuotas de uso (almacenamiento, transferencia, usuarios activos mensuales) y los interfaces de desarrollo disponibles. Todos los datos proceden de la documentación oficial de cada proveedor, no de respuestas generadas por IA.

Cloudflare Developer Platform es una plataforma de la categoría hosting — Workers, Pages, D1, R2, KV — edge-native serverless. Ofrece 3 tiers de precio: Free gratuito, Workers Paid desde $5/mes, Enterprise (personalizado). Su catálogo en Staxly documenta 18 características y 6 interfazes para desarrolladores.

Fly.io pertenece a la categoría hosting — Run your app close to users, globally. Ofrece 7 tiers de precio: Pay-as-you-go gratuito, Shared CPU 1x — 256 MB desde $2/mes, Performance 1x — 2 GB desde $32/mes, Reservation — Shared (1 yr) desde $36/mes. Su catálogo documenta 14 características y 4 interfazes para desarrolladores.

A continuación encontrarás los tiers de precio completos de ambas plataformas, una matriz de cuotas del tier gratuito (transferencia, almacenamiento, MAU, llamadas a la API y otros límites), el listado completo de características y los interfaces (CLI, SDKs, REST, GraphQL, MCP) disponibles para integrar cada servicio.

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Pricing tiers

Cloudflare Developer Platform

Free

Workers: 100k req/day, 10ms CPU/req. D1: 5M reads/day. KV: 100k reads/day. R2: 10 GB/mo. Durable Objects: 100k req/day.

Free

Workers Paid

$5/month minimum. 10M Workers req/mo + overages. Generous D1, KV, R2 allowances. All services unlocked.

$5/mo

Enterprise

Custom. Higher SLAs, dedicated support, account managers.

Custom

Cloudflare Workers ↗

Fly.io

Pay-as-you-go

No monthly fee. Machines billed per second. Free allocations: ~3 small shared machines + 3 GB volumes.

$0 base (usage-based)

Shared CPU 1x — 256 MB

Entry VM. 1 shared vCPU, 256 MB RAM. ~$2.02/month continuously on.

$2/mo

Performance 1x — 2 GB

Dedicated 1 vCPU, 2 GB RAM.

$32/mo

Reservation — Shared (1 yr)

$36/year for $5/mo credit (40% savings).

$36/mo

Shared CPU 8x — 16 GB

8 shared vCPU, 16 GB RAM.

$89/mo

Performance 16x — 128 GB

Dedicated 16 vCPU, 128 GB RAM.

$1014/mo

Enterprise

Custom. Dedicated capacity, SLA.

Custom

Fly.io website ↗

Free-tier quotas head-to-head

Comparing free on Cloudflare Developer Platform vs pay-as-you-go on Fly.io.

Metric	Cloudflare Developer Platform	Fly.io
d1 reads day	5000000 rows/day	—
d1 storage gb	5 GB	—
d1 writes day	100000 rows/day	—
durable objects gb sec	13000 GB-sec/day	—
durable objects requests	100000 req/day	—
kv reads day	100000 reads/day	—
kv storage gb	1 GB	—
kv writes day	1000 writes/day	—
r2 class a ops	1000000 ops/month	—
r2 class b ops	10000000 ops/month	—
r2 egress	free (unlimited) egress	—
r2 storage gb	10 GB/month	—
workers cpu ms	10 ms/invocation	—
workers logs events	200000 events/day	—
workers requests day	100000 req/day	—

Features

Cloudflare Developer Platform · 18 features

AI Gateway — Proxy for OpenAI/Anthropic/Gemini with caching, analytics, retries, rate limitin…
D1 — Managed serverless SQLite via sqlite-wasm. Read replicas via replicas keyword.
Durable Objects — Strongly-consistent objects with storage, pinned to a region. Good for sync/stat…
Email Routing — Catchall email routing + Email Workers for programmatic handling.
Hyperdrive — Connection pooler + cache for Postgres. Makes your DB edge-fast.
Images — Store, resize, transform images. Polish on-the-fly.
KV — Eventually-consistent key-value at every POP. Good for config, caching.
Pages — Static + SSR framework hosting (Next.js via OpenNext, Remix, Nuxt, SvelteKit).
Pages Functions — Workers integrated into Pages for backend logic.
Queues — Persistent message queues with batched consumers. Exactly-once per consumer grou…
R2 — S3-compatible object storage with **zero egress fees**.
Stream — Video upload, encoding, adaptive streaming.
Vectorize — Vector DB at the edge. For RAG + semantic search.
Workers — V8-isolate serverless at 300+ POPs. Sub-ms cold starts. JS/TS/Rust/Python (beta)…
Workers AI — Run LLMs (Llama, Mistral) + image, speech, embedding models at edge via @cf/... …
Workers Logs — Structured logs with 3-day retention on paid.
Workflows — Durable step-functions for long-running tasks.
Zaraz — Third-party script management at edge (analytics, marketing tags).

Fly.io · 14 features

Auto Stop/Start — Machines auto-stop when idle, start on request (like scale-to-zero).
Certs — Let's Encrypt + wildcard certs managed.
Fly GPU — A100/L40S/A10 on-demand GPU machines.
Fly Kubernetes (FKS) — Managed Kubernetes on Fly machines.
Fly Machines — Firecracker microVMs. Start in <1s. Run any Docker image.
Fly Postgres — Managed Postgres via Supabase partnership (2024). Also legacy self-run Postgres …
Fly Volumes — Persistent SSD attached to a Machine. Encrypted at rest.
Global Anycast — Single IP routes to the closest region automatically.
LiteFS — Distributed SQLite with primary/replica across regions.
Private Networks — 6PN WireGuard mesh. Connect machines across regions privately.
Secrets — Encrypted env vars propagated to all regions.
Tigris (partner) — S3-compatible storage for Fly apps. By partner.
Upstash Redis (partner) — Managed Redis via Upstash.
fly-replay headers — Route request to another region at app level.

Developer interfaces

Kind	Cloudflare Developer Platform	Fly.io
CLI	Wrangler CLI	flyctl CLI
REST	Cloudflare REST API, D1 HTTP (via Worker), R2 S3-compatible API	Machines API
GRAPHQL	—	Fly GraphQL API
MCP	Cloudflare MCP	—
OTHER	Workers Runtime (V8)	Fly Postgres (wire)

Key takeaways

Both Cloudflare Developer Platform and Fly.io offer a free tier — Cloudflare Developer Platform ("Free") and Fly.io ("Pay-as-you-go") — with no credit card required to start.
The entry-level paid plan is $5/month for Cloudflare Developer Platform (Workers Paid) vs. $2/month for Fly.io (Shared CPU 1x — 256 MB).
Cloudflare Developer Platform has a broader documented feature set (18 features) vs. Fly.io (14 features) in Staxly's catalog.
Developer integrations differ: only Cloudflare Developer Platform offers MCP; only Fly.io offers GRAPHQL.

Staxly is an independent catalog of developer platforms. Some links to Cloudflare Developer Platform and Fly.io may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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