How We Improved Our Android App Cold Start Time by 53%
Article Summary
Swiggy's Android team cut cold start time by 53% in three months. Here's the playbook that drove a 2.2% conversion lift.
The Swiggy mobile team systematically tackled Android app launch performance using Firebase Performance SDK and Systrace. Their methodical approach to identifying and fixing bottlenecks resulted in measurable business impact and immediate user feedback.
Key Takeaways
- Moved third party library initialization off the main thread
- Used Dagger for lazy initialization and removed reflection calls
- Converted PNGs to WebP and flattened launch screen hierarchy
- Firebase Performance SDK identified root causes before optimization
- Launch to listing conversion increased 2.2% post deployment
Critical Insight
A systematic approach to Android cold start optimization delivered 53% faster launches and drove measurable conversion improvements.
