Progressive Web Apps (PWAs) offer significant advantages in the modern mobile environment, particularly for users in developing countries who often face challenges with limited internet connectivity, low-end device specifications, and high data costs. PWAs utilize modern web technologies such as service workers and web manifests to provide an app-like experience through browsers, focusing on efficient disk use and network efficiency. By dynamically caching essential assets, PWAs enable fast load times and reduced storage requirements, which is crucial for devices with limited storage capacity. Ionic supports PWAs with built-in features like offline caching and home screen prompts, and is working on further enhancements like code splitting and treeshaking to optimize load times. This approach allows developers to deliver a high-quality user experience even on inexpensive devices, positioning PWAs as a transformative solution for reaching the next billion internet users globally.