Alexandre Moureaux

The top-selling Android phone in 2023 is 8x less powerful than high-end devices like the Pixel 8. This gap highlights a common blind spot among Android devs: we often use powerful devices and don't necessarily spot performance issues in our apps.

However, traditional performance testing is often seen as a cumbersome and time-consuming task, leading many to skip it in favor of pushing out new features.
But what if there was a way to simplify this process, making performance testing as straightforward as running a single command?

This talk presents how we can make this dream a reality: by using AI to automatically explore our app and combine it with the proper performance measuring tools, we can essentially get automated quality audits of our apps!

The promise of Lighthouse is pretty cool, right? Visit any website, and with only a few clicks, you can get a performance score for it!Wouldn’t it be grand if we had the same thing for React Native apps? 
Well, you’re in luck! let me present our new open source tool called Flashlight 🔦 (cause you know, a Flashlight is basically a very small “mobile” lighthouse, right?)

The web has several tools to measure performance, but what about us, React Native devs? Have you ever added some optimization in your code (like a memo here and there) and wondered if it had a real impact on performance?Presenting a Flipper plugin to measure React Native performance, with a concrete case of how we used it to bring our app performance to the top quality.Bonus: a deep dive into React DevTools flame charts!

POV: Your app has a crash affecting thousands of users, but for the life of you, you can't reproduce it and have no idea what's causing it. Hear the story of an epic struggle to vanquish a non reproducible bug and learn what to do (and what not to do) when facing such a foe.

You want to know if your RN app has the best performance? Check out the slow rendering UI stat on the play store, if your numbers are not so good, come to this talk! I will present Systrace, a tool that can be daunting to use at first glance, but a fantastic tool, once you learn how to master it. I will show how it helped us detect and solve performance issues in our app.