Heap vs Mixpanel
Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
Free tier available
Free tierFree tier available
Free tierWhat drives the bill
The metric that actually scales your invoice.
Paid tiers are quote-based by session volume.
Growth now starts at $0 and scales with event volume up to 20M events a month, with the first million free; annual billing saves around $480 a year. Enterprise is quote-based. Event-volume pricing stays generous for early products but climbs with a chatty event schema.
Free tier
Free plan with a monthly session limit.
Free forever, up to 1M events a month.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Widely used
Contentsquare · since 2013
Category standard
Mixpanel · since 2009
Strengths
- Retroactive event definition eliminates 'we didn't track that' entirely.
- Very fast time to first insight — no instrumentation project required.
- Warehouse sync for teams that want the raw data.
- Genuinely self-serve — product managers build their own reports without help.
- Large free tier that carries an early-stage product a long way.
- Fast query performance on large event volumes.
Limitations
- Autocaptured data needs governance or the event list becomes unusable noise.
- Session-based pricing on high-traffic products.
- Acquisition means overlap with Contentsquare's own products.
- Requires disciplined event instrumentation and naming.
- Weaker on user-level qualitative investigation than replay tools.
- Costs scale with event volume, which grows faster than user count.
Best for
Product teams that want analytics without an instrumentation backlog.
Product teams that want fast, self-serve behavioural reporting.
All of these integrate with: Segment, Snowflake, Slack, BigQuery.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.