This reduced not only size, by avoiding the need to cache/load large custom-built frameworks, but also complexity.Īn exception to this rule is admitted in case the OS does not support some kind of feature satisfactorily. Rather than reinventing the wheel, we used the UI framework available on the device’s native OS to support a wider variety of application feature needs. While UI frameworks can be powerful and increase developer productivity, they require constant upkeep and maintenance to keep up with the ever-changing mobile OS landscape. Its unified architecture outlines a new SQLite-centered approach to native app development.Ĭounter to a number of other organizations that chose Facebook owned React Native as the technology to build their mobile apps, Facebook's rewrite of Messenger puts OS-native features center and front. Soon to be available on the App Store, the new Messenger is twice as fast on launch and less than one-fourth in size, says Facebook. Facebook has been at work to rewrite its iOS Messenger app using native technologies.