The aim of this study is to examine the advantages by means of Flutter completed other app progress platforms. It’s exploring the functionality of-various stands and their role in app creation. Developers today seek simplicity in their work, and Flutter offers a framework that allows for the creation of apps for both iOS and Android. Without Flutter, developers would either need to duplicate their efforts aimed at dissimilar operating systems or settle for a less optimal resolution that expenses native presentation for movability. By utilizing the open-source Flutter SDK, developers can build reliable and high-performing mobile apps for both iOS then Android platforms. Keywords: Flutter, iOS, Android, Cross-platform development