Implementation of Progressive Web Application (PWA) on Mobile Devices A Case Study of the LAYAR Application

Abstract

This study aims to evaluate the impact of implementing Progressive Web Application (PWA) technology on the LAYAR platform, a web-based administrative system for RT/RW communities in Indonesia. The research addresses key limitations such as load time, installability, and offline access on mobile devices, which are the primary access points for users. The implementation involved PWA components including service workers, a web app manifest, and caching strategies. A quantitative experimental approach was employed using a one-group pretest-posttest design, with system performance measured through Google Lighthouse and Chrome DevTools under various network conditions. The results show an increase in Lighthouse performance score from 87% to 93%, a reduction in Cumulative Layout Shift from 0.15 to 0.01, and successful offline access to static content. Under fast 4G conditions, load time decreased by nearly 50%, while service worker caching contributed to performance consistency across different networks. These findings demonstrate that PWA integration can significantly improve performance, offline functionality, and installability—offering practical advantages for public service applications in mobile-first environments. Future research is recommended to involve real users in usability testing and investigate the adoption of PWA in other sectors such as healthcare and education.