GrowthBook vs Cloudflare Developer Platform
Open-source feature flags + experimentation — Warehouse Native
vs. Workers, Pages, D1, R2, KV — edge-native serverless
Pricing tiers
GrowthBook
Open Source (Self-Host)
MIT-licensed. Unlimited everything. Community support.
$0 base (usage-based)
Cloud — Starter (Free)
Up to 3 users. Unlimited flags + experiments. Warehouse Native included.
Free
Cloud — Pro
$40/user/month. Up to 50 users. Advanced stats, visual A/B editor, CUPED, sequential testing, bandits.
$40/mo
Cloud — Enterprise
Custom. Unlimited users, SSO/SAML, approval flows, data pipelines, exportable audit logs.
Custom
Self-Host Enterprise
Open Source + Enterprise license. Visual A/B editor, advanced metrics, SSO/SAML, approvals, training.
Custom
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
Free-tier quotas head-to-head
Comparing oss on GrowthBook vs free on Cloudflare Developer Platform.
| Metric | GrowthBook | Cloudflare Developer Platform |
|---|---|---|
| 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
GrowthBook · 15 features
- Approval Flows — Require reviewer approval on flag changes. Enterprise.
- Audit Logs — Full change history. Exportable on Enterprise.
- Dimensions & Slicing — Break down experiment results by user dimensions.
- Edge SDK Support — Cloudflare Workers, Lambda@Edge, Fastly, Akamai EdgeWorkers, Netlify Edge.
- Experiments — A/B/n with CUPED variance reduction + sequential testing.
- Feature Flags — Boolean + string + number + JSON flags with targeting.
- Feature Reviews (PR-style) — Draft → review → approve flag changes.
- Guardrail Metrics — Auto-monitor key metrics during experiments.
- Metric Catalog — Define + reuse metrics across experiments.
- Multi-Armed Bandits — Adaptive traffic allocation. Pro+.
- Safe Rollouts — Guarded gradual rollouts with automatic rollback.
- SSO / SAML — Enterprise SSO for cloud + self-host EE.
- Sticky Bucketing — User stays in variant even after eligibility changes.
- Visual A/B Test Editor — No-code DOM editor for web experiments. Pro+.
- Warehouse Native — Connect your warehouse + run experiments against your events data.
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).
Developer interfaces
| Kind | GrowthBook | Cloudflare Developer Platform |
|---|---|---|
| CLI | — | Wrangler CLI |
| SDK | Edge SDKs (CF Workers / Lambda@Edge / Fastly / Akamai), growthbook-android, growthbook-flutter, growthbook-go, growthbook-java, growthbook-node, growthbook-php, growthbook-python, growthbook-ruby, growthbook-swift, sdk-javascript, sdk-react | — |
| REST | GrowthBook REST API | Cloudflare REST API, D1 HTTP (via Worker), R2 S3-compatible API |
| MCP | — | Cloudflare MCP |
| OTHER | Webhooks | Workers Runtime (V8) |
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