Flutter

Flutter is a wildly explosive, technologically terrifying, and fiercely dominant open-source UI toolkit created by Google. It operates as the absolute, heavy-weight direct rival to React Native. While React Native uses a 'Bridge' to talk to the native OS, Flutter built a massive empire by completely bypassing the OS entirely. Flutter mathematically draws every single pixel on the screen from scratch using its own high-speed 2D rendering engine (Skia/Impeller). The absolute core differentiator of Flutter is its "120FPS Performance and Single Codebase UI Perfection." Because it paints its own pixels, a Flutter app looks mathematically, exactly the same on an iPhone 14, a 5-year-old Android, a Web Browser, and a Windows desktop. It achieves blistering 120-frames-per-second scrolling speeds that React Native struggles to match. Because it completely eliminated the UI inconsistencies between Apple and Google devices, offering unparalleled rendering speed and compiling natively to ARM machine code, it is rapidly becoming the new global standard for modern mobile startups and massive enterprise banking apps.