A Importância da Performance Para Apps Mobile
Article Summary
Victor Oliveira from Mercado Libre reveals a harsh truth: 53% of users uninstall apps due to performance issues. With 4.5 billion active Android and iOS devices worldwide, each performing differently, mobile performance isn't optional—it's survival.
Mercado Libre's mobile performance team shares their journey optimizing apps for Latin America's largest e-commerce platform. The article breaks down why performance matters through user research and details nine practical optimization techniques they apply daily across their Android and iOS apps.
Key Takeaways
- 61% of users expect apps to launch in 4 seconds or less
- 80% will only retry a problematic app 3 times before abandoning it
- Team reduced Mercury app errors by 75% despite increased traffic
- Build time optimizations and dependency management cut developer idle time
- Proguard rules and on-demand resource loading reduced app size significantly
Mercado Libre's dedicated performance team uses automated monitoring, build optimization, and strategic code removal to prevent the user abandonment that kills mobile apps.
About This Article
During the COVID-19 surge in 2020, Mercado Libre's Mercury warehouse app struggled with performance issues. Package demand skyrocketed, and the team had to focus on handling the traffic spike instead of fixing technical debt in the mobile app.
Victor Oliveira's team made nine improvements to speed things up. They adjusted ProGuard rules, switched to downloading images on demand rather than bundling them, and reordered app initializers to cut startup time.
By July 2020, Mercury cut error events by 75%. This happened even as traffic grew from the expanding logistics network and more marketplace activity.