Bitmapist: We built an open-source cohorts analytics tool that saved millions
9 months ago
- #open-source
- #data-driven
- #analytics
- Doist built Bitmapist, an open-source cohort analytics library, to address specific user behavior questions without relying on expensive commercial platforms.
- Bitmapist uses Redis bitmaps for efficient storage and real-time analytics, handling millions of interactions with minimal memory usage.
- The tool has transformed decision-making at Doist by enabling smarter feature launches, effective A/B testing, and rapid, data-driven choices.
- Bitmapist's memory-efficient standalone server reduced memory usage from 130GB to 300MB, saving significant infrastructure costs.
- The built-in cohort visualization provides real-time insights, helping teams track retention, adoption, and campaign impacts instantly.
- Bitmapist is available as an open-source tool, easy to integrate via pip, with full documentation on GitHub.