Staxly

Paddle vs PostHog

Merchant of Record for SaaS — global tax, billing, checkout in one
vs. Open source product analytics — all-in-one dev tool

Paddle website ↗PostHog website ↗

Pricing tiers

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 ↗

PostHog

Free (generous)
No credit card. Each product has its own free monthly quota. Great for startups + OSS.
Free
Paid (usage-based)
Pay only what you use, after free quotas. Volume discounts at higher tiers. 6 projects, 7-year retention.
$0 base (usage-based)
Self-Hosted (OSS)
MIT-licensed. Run on your own infra via Docker/k8s. Zero vendor lock-in.
$0 base (usage-based)
Enterprise
Custom. SAML SSO, dedicated CSM, custom SLA.
Custom
PostHog website ↗

Free-tier quotas head-to-head

Comparing payg on Paddle vs free on PostHog.

MetricPaddlePostHog
data warehouse rows—1000000 rows/month
error tracking exceptions—100000 exceptions/month
feature flags requests—1000000 requests/month
llm analytics events—100000 events/month
logs gb—50 GB/month
product analytics events—1000000 events/month
projects—1 projects
retention years—1 year
session replay recordings—5000 recordings/month
surveys responses—1500 responses/month
team members—unlimited members

Features

Paddle · 12 features

  • Affiliates (Rewardful partnership) — Affiliate tracking (via partner).
  • Customer Portal — Self-service subscription management.
  • Fraud Protection — ML + human review. Paddle absorbs chargebacks.
  • Global Tax Compliance — Automatic VAT/GST/sales tax calc + remittance + filing.
  • One-time Sales — Perpetual license sales, single purchases.
  • Paddle Checkout — Hosted or overlay checkout. Localized + fraud-protected.
  • Paddle Retain — Revenue recovery + cancel flows (acquired Retain).
  • ProfitWell Analytics — Included subscription analytics (acquired ProfitWell).
  • Self-Serve Invoices — B2B invoicing with custom POs.
  • Smart Dunning — Retry logic + email sequences for failed payments.
  • Subscriptions — Full lifecycle: trials, changes, cancellations, recovery.
  • Webhooks — Standard resource events with HMAC signing.

PostHog · 14 features

  • A/B Testing — Experiments with significance analysis.
  • Data Pipelines — Export events to BigQuery, Snowflake, S3.
  • Data Warehouse — Query external sources (Stripe, Hubspot, S3) alongside events with SQL.
  • Error Tracking — Sentry-style error tracking in same platform.
  • Feature Flags — Rollout flags with targeting, A/B testing, JSON payloads.
  • LLM Analytics — Tracing + cost tracking for OpenAI, Anthropic, Gemini, etc.
  • Logs — Centralized log ingest with free 50 GB/month.
  • Product Analytics — Events, funnels, trends, retention, paths. SQL insights available.
  • Revenue Tracking — Integration with Stripe for revenue + churn metrics.
  • Self-Hosting — Docker/Helm. Full feature parity with cloud.
  • Session Replay — Watch user sessions. Privacy controls, masked inputs, JS errors.
  • SQL Query API — Run ClickHouse SQL over your events via API.
  • Surveys — In-app surveys + feedback widgets.
  • Workflows — Trigger emails/webhooks on events.

Developer interfaces

KindPaddlePostHog
SDKPaddle.js, @paddle/paddle-node-sdk, paddle-pythonposthog-android, posthog-flutter, posthog-go, posthog-ios (Swift), posthog-js, posthog-node, posthog-php, posthog-python, posthog-react-native, posthog-ruby
RESTPaddle Billing APIPostHog REST API
MCP—PostHog MCP
OTHERPaddle Checkout, Paddle WebhooksWebhooks + Actions
Staxly is an independent catalog of developer platforms. Outbound links to Paddle and PostHog are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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