battles / Analytics
Census vs Heap
Census ($1,000/mo/mo, vibe code 4/10) vs Heap ($1,000/mo/mo, vibe code 4/10). Heap is the easier one to rebuild yourself — here is what you lose either way.
Analytics
$1,000/mo/mo
- MVP
- 1 weekend
- Full replacement
- 9-12 months, due to continuous API connector maintenance and delta tracking engines
Analytics
$1,000/mo/mo
- MVP
- 2 weeks
- Full replacement
- 9-12 months, due to the scale of high-throughput OLAP data ingestion and client-side DOM mutation tracking
easier to rebuild
get the build prompt →price gap / year
usage-based
running both / year
$24,000/mo
our call
Start with Heap — highest vibe code, weakest moat.
Census
Writing a script to push SQL query results to an API takes a day, but rebuilding Census requires maintaining dozens of third-party API rate limits, schema evolutions, and delta calculations. Unless you only sync data to 1-2 static endpoints, the ongoing connector maintenance will exhaust developer bandwidth.
you can rebuild
- Visual field mapping UI
- Scheduled SQL query execution trigger
- Basic target API authentication management
- Sync execution log dashboard
- Slack alerts on job failures
what you lose
- Automated schema drift detection across destination APIs
- Built-in token bucket rate limiting and backoff algorithms
- High-performance parallelized API batch payload construction
- Pre-built connector maintenance across hundreds of third-party platforms
- SOC2-compliant audit logging for sensitive field level updates
real moats
- Continuous maintenance of hundreds of third-party SaaS REST and GraphQL APIs
- Engineered incremental sync diffing algorithms optimized for large warehouse queries
- SOC2 Type II security compliance and enterprise-grade data handling controls
Heap
Building a simple custom event tracker takes hours, but Heap's core value is capturing every un-instrumented raw DOM event and querying billions of rows retroactively. Maintaining the ClickHouse infrastructure and low-latency client snippet required for this consumes significantly more engineering resources than a SaaS subscription.
you can rebuild
- Explicit event logging via API
- Basic pageview and click counting
- Standard conversion funnel visualization
- User identity tracking and aliasing
- Simple user segment filtering
what you lose
- Zero-code retroactive event definition on historical raw DOM payloads
- Client-side automatic DOM change and dynamic hierarchy tracking
- Managed, highly optimized ClickHouse/OLAP query performance
- Automatic client-side PII redacting and sensitive field masking
- Built-in session replay integration and visual event point-and-click definition
real moats
- Proprietary client-side DOM autocapture engine
- High-throughput event ingestion and low-latency OLAP querying at scale
- Retroactive query parsing engine on raw payload streams
open source escape hatches
- PostHog MIT
- Matomo GPL-3.0
- OpenReplay Apache-2.0
Questions people ask
Which is easier to rebuild with AI, Census or Heap?
Heap. It scores 4/10 on vibe code with a moat of 3/10, so an AI-assisted MVP takes about 2 weeks and a full replacement about 9-12 months, due to the scale of high-throughput OLAP data ingestion and client-side DOM mutation tracking.
Which one costs less, Census or Heap?
Census at $1,000/mo/mo for a typical mid-market store. The gap between the two is about usage-based a year.
What do I lose if I replace Census?
Automated schema drift detection across destination APIs Built-in token bucket rate limiting and backoff algorithms High-performance parallelized API batch payload construction
What do I lose if I replace Heap?
Zero-code retroactive event definition on historical raw DOM payloads Client-side automatic DOM change and dynamic hierarchy tracking Managed, highly optimized ClickHouse/OLAP query performance
One e-commerce SaaS teardown every week.
Honest verdicts, build prompts and overlooked vertical SaaS opportunities. No tracking pixels, no drip sequence, unsubscribe in one click.
free forever · no third-party tracking · the prompts stay public