X relaunches a rebuilt Android app after year-long effort

X released a fully rebuilt Android app after nearly a year of development, promising faster loading, smoother scrolling, better notifications, and improved reliability. Product head Nikita Bier called it one of the company’s largest engineering projects and said the new Kotlin and Jetpack Compose foundation will help X ship features more quickly.

The rewrite signals X is prioritizing Android performance as it pushes broader platform ambitions, including payments and messaging. A modernized app foundation could make X more competitive in mobile engagement, but users will judge the effort by whether reliability and feature rollout actually improve.