Push notifications are the primary advantage of using a dedicated mobile application over a web-based site. A standard browser simply cannot send you those background alerts because it lacks the necessary integration with your device's notification system. When you use the official app, you get those instant pings that notify you about every profitable window the moment it goes live. It turns the platform into a tool that works for you, rather than something you have to hunt through during your spare time. It is a much more effective way to capitalize on limited-time deals that would otherwise pass you by.