Suresh Maidaragi

Senior Staff Engineer at Physics Wallah

Having 11+ years of industry experience on building mobile applications worked at Gojek, Friday Media Group, Ultrahuman, Physics Wallah and other Multinational companies. Built and scaled mobile applications for 10millions+ user base

Building Mobile Apps at Scale with Kotlin Multiplatform: A Real-World Case Study

Kotlin Multiplatform is no longer just experimental. It is now powering production apps at scale. But what does adoption really look like in a large app with millions of users? In this session, you’ll learn how the Physics Wallah app (10M+ downloads) adopted Kotlin Multiplatform (KMP) and Compose Multiplatform (CMP), even when CMP for iOS was still in its early alpha stage. You’ll explore why the team chose KMP, how it helped deliver features faster across Android and iOS, and the challenges faced along the way. You’ll discover how KMP reshaped engineering culture by merging separate iOS and Android teams into a single mobile team, improving collaboration and reducing duplicated effort. On the technical side, you’ll dive into how the team introduced an umbrella architecture within their repo to speed up building, testing, and sharing iOS frameworks. By the end, you’ll know what it really takes to adopt KMP and CMP at scale — the wins, the challenges, and the practices that helped us unify mobile development in one of India’s biggest apps. We’ll also have time for Q&A.