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# Multiple Apps, Millions of Users: Scaling React Native in Production


- **Date:** Friday, Jul 10, 2026
- **Time:** 14:20–14:50 (30 min)
- **Room:** Stage 2
- **Event:** World Congress 2026 Europe

## Recording

[Watch recording](https://www.wearedevelopers.com/videos/100313-multiple-apps-millions-of-users-scaling-react-native-in-production)

## Description

What happens when a React Native app becomes multiple apps serving millions of users? You learn a lot, sometimes the hard way.

It started with a single mobile app. Today, multiple high-traffic products serve millions of users across Europe, all built with React Native. This talk shares the real lessons from that evolution: the architectural decisions that paid off, the performance challenges along the way, and the upgrade nightmares that had to be survived.

Expect to hear what worked, what didn't, and what should have been done differently.

## Speaker

### [Milica Aleksic](https://www.wearedevelopers.com/@milica-aleksic)

Senior Software Engineer at Novium


## Related talks at this congress

- [AI Agents Face-Off: Same App, Multiple Frameworks](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1214-ai-agents-face-off) — Elaine Dias Batista
- [Super scaling for the Super Bowl: How to survive 30 million users hitting your backend in 30 minutes](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1386-super-scaling-for) — Irina Branovic
- [Microfrontends: Lessons Learned from Growing a Design System and Shared Libraries Across 20+ teams](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1160-microfrontends) — Erasmo Hernandez
- [The Dark Corners of Kotlin Multiplatform](https://www.wearedevelopers.com/events/world-congress-2026-europe/sessions/1108-the-dark-corners-of) — Andrea Della Porta