GB WhatsApp is a modified version of the popular WhatsApp messaging app, offering additional features and customization options not found in the official version. It is developed by third-party developers who aim to enhance the user experience by adding unique functionalities, but it is not affiliated with WhatsApp or Meta (formerly Facebook), the parent company of WhatsApp. While GB WhatsApp is appealing due to its added features, it comes with risks that users should be aware of before deciding to install it.