Contentful vs PostHog
Enterprise headless CMS — Compose + Studio + Personalization
vs. Open source product analytics — all-in-one dev tool
Pricing tiers
Contentful
Free
10 users, 2 roles, 2 locales, 100K API calls/mo, 50 GB CDN, 10K records, 25 content types.
Free
Lite
$300/mo. 20 users, 3 roles, 3 locales, 1M API calls/mo, 100 GB CDN.
$300/mo
Premium
Custom. Unlimited API calls, unlimited spaces, 24/7 support, 99.99% SLA.
Custom
Personalization Add-on
Start/Core/Scale (100K/500K/1M MAUs). Custom pricing.
Custom
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
Free-tier quotas head-to-head
Comparing free on Contentful vs free on PostHog.
| Metric | Contentful | PostHog |
|---|---|---|
| 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
Contentful · 17 features
- AI Actions — AI content generation/translation/editing in workflow.
- App Framework — Build custom apps + extensions for the web UI.
- Compose — Visual page-building UI for editors.
- Content Delivery API — Read-only, cached, fast (CDN-backed) for published content.
- Contentful Studio — AI-assisted multi-channel composition.
- Content Management API — Full read/write for admin + authoring tools.
- Content Modeling — Rich content types with fields, references, validations.
- Environments — Branchable content workspaces (staging, preview, etc.).
- GraphQL Content API — Flexible queries with pagination, filtering, nested references.
- Images API — On-the-fly image manipulation (crop, resize, format).
- Localization — Multi-locale content with inheritance.
- Marketplace Apps — 300+ apps: Cloudinary, Shopify, BigCommerce, Optimizely, etc.
- Personalization — Content variants by audience. Acquired Ninetailed 2024.
- Scheduled Publishing — Queue entries for future publish.
- Tasks + Comments — Editorial collaboration.
- Webhooks — HTTP + transformation on publish/unpublish/archive.
- Workflows — Editorial approval + publication workflows.
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
| Kind | Contentful | PostHog |
|---|---|---|
| CLI | contentful-cli | — |
| SDK | contentful (JS client), contentful-management (Node) | posthog-android, posthog-flutter, posthog-go, posthog-ios (Swift), posthog-js, posthog-node, posthog-php, posthog-python, posthog-react-native, posthog-ruby |
| REST | Content Delivery API, Content Management API, Content Preview API, Images API | PostHog REST API |
| GRAPHQL | GraphQL Content API | — |
| MCP | — | PostHog MCP |
| OTHER | Webhooks | Webhooks + Actions |
Staxly is an independent catalog of developer platforms. Outbound links to Contentful 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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