Staxly

GrowthBook vs Paddle

Open-source feature flags + experimentation — Warehouse Native
vs. Merchant of Record for SaaS — global tax, billing, checkout in one

GrowthBook websitePaddle website

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
GrowthBook website

Paddle

Pay-as-you-go
5% + 50¢ per Checkout transaction. No monthly fee. All-inclusive (tax, fraud, support).
$0 base (usage-based)
Enterprise
Custom rates for high-volume. Dedicated success. Custom migration + implementation.
Custom
Invoicing (<$10 products)
Custom pricing for invoicing / products under $10.
Custom
Paddle website

Free-tier quotas head-to-head

Comparing oss on GrowthBook vs payg on Paddle.

MetricGrowthBookPaddle
No overlapping quota metrics for these tiers.

Features

GrowthBook · 15 features

  • Approval FlowsRequire reviewer approval on flag changes. Enterprise.
  • Audit LogsFull change history. Exportable on Enterprise.
  • Dimensions & SlicingBreak down experiment results by user dimensions.
  • Edge SDK SupportCloudflare Workers, Lambda@Edge, Fastly, Akamai EdgeWorkers, Netlify Edge.
  • ExperimentsA/B/n with CUPED variance reduction + sequential testing.
  • Feature FlagsBoolean + string + number + JSON flags with targeting.
  • Feature Reviews (PR-style)Draft → review → approve flag changes.
  • Guardrail MetricsAuto-monitor key metrics during experiments.
  • Metric CatalogDefine + reuse metrics across experiments.
  • Multi-Armed BanditsAdaptive traffic allocation. Pro+.
  • Safe RolloutsGuarded gradual rollouts with automatic rollback.
  • SSO / SAMLEnterprise SSO for cloud + self-host EE.
  • Sticky BucketingUser stays in variant even after eligibility changes.
  • Visual A/B Test EditorNo-code DOM editor for web experiments. Pro+.
  • Warehouse NativeConnect your warehouse + run experiments against your events data.

Paddle · 12 features

  • Affiliates (Rewardful partnership)Affiliate tracking (via partner).
  • Customer PortalSelf-service subscription management.
  • Fraud ProtectionML + human review. Paddle absorbs chargebacks.
  • Global Tax ComplianceAutomatic VAT/GST/sales tax calc + remittance + filing.
  • One-time SalesPerpetual license sales, single purchases.
  • Paddle CheckoutHosted or overlay checkout. Localized + fraud-protected.
  • Paddle RetainRevenue recovery + cancel flows (acquired Retain).
  • ProfitWell AnalyticsIncluded subscription analytics (acquired ProfitWell).
  • Self-Serve InvoicesB2B invoicing with custom POs.
  • Smart DunningRetry logic + email sequences for failed payments.
  • SubscriptionsFull lifecycle: trials, changes, cancellations, recovery.
  • WebhooksStandard resource events with HMAC signing.

Developer interfaces

KindGrowthBookPaddle
SDKEdge 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-reactPaddle.js, @paddle/paddle-node-sdk, paddle-python
RESTGrowthBook REST APIPaddle Billing API
OTHERWebhooksPaddle Checkout, Paddle Webhooks
Staxly is an independent catalog of developer platforms. Outbound links to GrowthBook and Paddle are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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