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AI Tool Comparison

Fullstory vs Keen

A detailed side-by-side comparison to help you choose the right AI tool for your needs.

Fullstory

Fullstory

Behavioral data analytics platform for digital experience optimization

Contact Sales
Try Fullstory
Keen

Keen

Fully managed event streaming platform built on Apache Kafka for developers

From $149/mo
Try Keen

Feature Comparison

Pros & Cons

Fullstory

Pros

  • Autocapture technology eliminates the need for manual event tagging, capturing every interaction automatically
  • Privacy-first architecture redacts sensitive data on-device before it leaves the app, unlike competitors that redact server-side
  • StoryAI proactively surfaces friction points and prioritizes opportunities by conversion impact, reducing manual analysis
  • Unified analytics across web, iOS, Android, and cross-platform frameworks in a single view
  • Lightweight mobile SDK with ~100KB per minute bandwidth usage, minimizing performance impact

Cons

  • No transparent pricing or free tier available; requires contacting sales for all plans
  • Enterprise-oriented positioning may make it cost-prohibitive for small teams or startups
  • Heavy reliance on autocaptured behavioral data means it may require complementary tools for traditional product analytics or A/B testing

Keen

Pros

  • Complete managed data pipeline from ingestion to visualization eliminates infrastructure overhead
  • Built-in data enrichment automatically adds geolocation, URL parsing, and other context to events
  • White-labeled visualization library allows embedding branded dashboards directly in customer-facing apps
  • Flexible JSON event schema with no rigid structure requirements

Cons

  • No free tier available — the entry price of $149/mo may be steep for small projects or prototyping
  • Overage charges can add up quickly ($1 per 5,000 events, $5 per 100 queries beyond plan limits)
  • 2-year data retention cap on Team and Business plans requires Custom tier for longer storage

Our Verdict

Both Fullstory and Keen are excellent choices with similar feature sets. Your decision should depend on your specific needs, pricing, and whether you need self-hosting capabilities.

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