An app is dear to an end user, especially when it performs better than its expectations. A lot of apps today are resource eaters. Even though they might be the best at the user interface and experience, if they end up eating too many of resources of the phone, the app might just face an uninstalled state within no time. The battery is one such dear factor to the user and still remains a point of consideration while choosing a smartphone.

In this section, we will discuss several performance avenues in an app that we must cater to to ensure that we are building a performance-centric app which is resource friendly. We will list some of the tools we can use to improve the app performance too.