This app has a good base. The core functionality of chatting and calling works well, and the integration with Firebase is seamless. The UI is functional but feels a bit clunky in places. Some of the animations are a little jarring, and the overall design could benefit from a more modern aesthetic. There are a few minor bugs; nothing game-breaking, but certainly noticeable. It's a decent starting point for someone who wants to build on it, but it's not quite ready for prime time as is. I'd recommend some improvements to the user interface and ironing out the smaller issues before releasing a fully polished product.
This app is incredibly well-built. The integration between Flutter and Firebase is seamless; you really can't tell where one ends and the other begins. Everything works smoothly and responsively. I've used other apps that tried to do something similar, but this one is in a different league in terms of performance and stability. The code is clearly well-written and well-organized. Highly recommended for anyone wanting a solid foundation for a chat app.
