Due to the growth of the mobile phone application market, which development method can efficiently develop high-performance applications has become a problem. This experimental study compares the rendering performance of applications developed through native development and React Native on the Android platform. By developing an application with the ability to render pictures, and measuring the rendering performance of the application. The measurement results show that natively developed applications usually have high stability, while the average rendering time of React Native applications is similar to that of natively developed applications as the rendering performance pressure gradually increases. In future work, other image types may be measured, or text and video may be measured. It is also possible to run multiple different experiments to collect data to improve development tools or develop new performance analysis tools. / <p>Det finns övrigt digitalt material (t.ex. film-, bild- eller ljudfiler) eller modeller/artefakter tillhörande examensarbetet som ska skickas till arkivet.</p><p>There are other digital material (eg film, image or audio files) or models/artifacts that belongs to the thesis and need to be archived.</p>