On the Brink: Balancing Quick Wins and Long-Term Success Whitepaper
On the Brink: Balancing Quick Wins and Long-Term Success Whitepaper
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On the Brink: Balancing Quick Wins and Long-Term Success

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DMAIC is a methodology we use at Callstack to improve React Native applications' performance in a manageable, consistent, and measurable way. In this whitepaper, you'll find out how we applied it to Expensify's case to solve their performance challenges.
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  • Pay attention to UI re-renders
  • Use dedicated components for certain layouts
  • Think twice before you pick an external library
  • Optimize your app’s JavaScript bundle
  • Always remember to use libraries dedicated to the mobile platform
  • Find the balance between native and JavaScript
  • Animate at 60FPS - no matter what
  • Replace Lottie with Rive
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  • Always run the latest React Native version to access the latest features
  • How to debug faster and better with Flipper
  • Experiment with the New Architecture of React Native
  • Optimize your Android application startup time with Hermes
  • Optimize your Android application’s size with Gradle setting
  • Avoid unused native dependencies
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  • Run tests for key pieces of your app
  • Have a working Continuous Integration (CI) in place
  • Don’t be afraid to ship fast with Continuous Deployment
  • Ship OTA (Over-the-Air) in an emergency
  • Know how to profile iOS
  • Know how to profile Android
Matt Hargett

It's been fantastic to work with Callstack to bring React Native to Windows 7 and 8, and then to bring React Native to game console products as well. I'm really excited with my new venture, Rebecker Specialties, to work with Callstack to bring React Native to the Apple Vision Pro and to mixed reality platforms.

Matt Hargett
Founder of Rebecker Specialties Inc
Rafael Mendiola

This is the book and the people that encapsulates a lot of the work we drove at PlayStation to make React Native able to achieve the 1.0 goal of 200ms app Time To Interactive and 600ms Time To Fresh Data on PS5. I was so pleased we got the uplift into the product and put into open source. I really can’t recommend Callstack enough for this kind of hard-core, magical, disruptive technical execution.

Rafael Mendiola
Senior Design Systems Engineer at Hinge Health
Orta Therox

There are so many tricky parts to making a great native app, and to lower the barrier to entry, React Native can abstract away things that you might want to come back and check on later once you’ve got your app up and running – this ebook does a solid job of helping you understand how to really get from good to great.

Orta Therox
CocoaPods creator, TypeScript core contributor
Alexandre Moureaux

Feel like a functionality is missing in Flipper? Good news! Flipper is easily extensible and has a comprehensive guide on how to write custom plugins in React. Why not build your own?

Alexandre Moureaux
App performance specialist at BAM
Michał Chudziak

I’m extremely proud to represent github.com/callstack/react-native-visionos team at React Open Source Awards ceremony today at #reactsummit! Big shoutout for @o_kwasniewski and @syke for making this happen. Well deserved recognition

Michał Chudziak
@michalchudziak
benefits

OPTIMIZE THE DATA-DRIVEN WAY

DMAIC stands for Define, Measure, Analyze, Improve, and Control - each marking a stage in an app optimization process. We'll show you how we cover each of the mentioned steps in more detail, defining what we have when stepping in and what we want as a result.

OPTIMIZE THE DATA-DRIVEN WAY

DMAIC stands for Define, Measure, Analyze, Improve, and Control - each marking a stage in an app optimization process. We'll show you how we cover each of the mentioned steps in more detail, defining what we have when stepping in and what we want as a result.
01
DISCOVER
the must-have features for high-quality TV apps
02
CREATE
flexible designs for all major TV systems
03
ENHANCE
user experience with holistic optimization strategies
01
Boost
React Native app performance
02
Fix
slowdowns post multiplatform migration
03
Refocus
by cutting tech debt and pivoting to feature development
04
Upskill
in React Native optimization swiftly
05
Access
expert React Native advice in one place
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