1. Universal Accessibility: Web applications can be accessed from any device with an internet connection, such as computers, smartphones and tablets. It provides universal access to users from multiple locations and devices.

2. No Installation and Updates Required: Users do not need to download or install software, as web applications run through the browser. Updates can also be done automatically by the developer.

3. Platform-Agnostic: Web applications run on multiple platforms, be it Windows, macOS, Linux, or others. Users are not limited by the operating system they use.

4. Easy Collaboration: Users can easily collaborate and share information through web applications, even if they are in different locations.

5. Central Maintenance: In web application development, maintenance and updates can be done centrally on the server, so users don't have to face version compatibility issues.

6. Real-Time Updates: Web applications can provide real-time information or data to users without the need to re-download the application or perform manual updates.

7. Scalability: Web applications can be easily extended to handle a larger number of users with controlled scalability.

8. Lower Costs: In some cases, developing and maintaining web applications can be more economical than developing desktop or mobile applications.

9. Global Accessibility: Web applications can be accessed from all over the world, enabling businesses or services to reach global markets.

10. Cross-Platform Development: With a responsive approach or platform-agnostic application development, web applications can overcome the challenges of multi-platform development.

11. Openness and Integration: Web applications allow integration with third-party services via APIs, extending functionality and providing a richer experience.

These advantages make web applications a flexible and efficient solution to meet the various needs of business, education, entertainment, and many more.