What is the Bubble app used for?

Could you please explain in detail what the Bubble app is primarily utilized for? I've heard it mentioned in a few circles but haven't quite grasped its core functionality. Is it primarily for social media interactions, or does it serve a more specific purpose? Is it suitable for personal use or does it cater to businesses as well? Could you also elaborate on any unique features or advantages that the Bubble app offers? I'm quite curious to know more about it.