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PostHog vs Heap: Which Tool Is Best?

Category: Analytics · Data-driven comparison · Updated 2026

PostHog

posthog.com
$0/mo
Freemium

Open-source product analytics suite with session recording, feature flags, A/B testing, and event pipelines.

Key strength: Open-source, self-hostable with full suite of tools

Heap

heap.io
$0/mo
Subscription

Autocapture analytics that retroactively tracks every user interaction without manual event instrumentation.

Key strength: Retroactive data — define events after they happen

Feature Comparison

FeaturePostHogHeap
Product analytics✓✗
Session recording✓✗
Feature flags✓✗
A/B testing✓✗
Event pipelines✓✗
Autocapture tracking✗✓
Retroactive event analysis✗✓
Session replay✗✓
Journey maps✗✓
Revenue attribution✗✓

Pricing & Model

PostHogHeap
Starting Price$0/mo$0/mo
MonetizationFreemiumSubscription
CategoryAnalyticsAnalytics
Target AudienceDeveloper-first product teams who want open-source observabilityProduct managers who need insights without engineering dependency

Which Should You Choose?

PostHog is best for developer-first product teams who want open-source observability, with its standout strength being open-source, self-hostable with full suite of tools.

Heap excels for product managers who need insights without engineering dependency, thanks to retroactive data — define events after they happen.

The right choice depends on your team size, budget, technical requirements, and whether you prioritize open-source, self-hostable with full suite of tools or retroactive data — define events after they happen. Many organizations use both tools in complementary workflows.

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