What Shareware is
Software available on the Internet for downloading so you can try it before buying it. It is copyrighted and distributed on a "free-will donation" basis, either via the Internet or by being passed along by satisfied customers. users who continue to use the program after a trial period are expected to pay a registration fee. In return, they get documentation, technical support, and access to updated versions.
The meaning of Application
Used interchangeably with program and software, this is a general term for a program that performs specific tasks, such as word processing, database management, e-mail sending or retrieval, or Web browsing. Unlike system software, which maintains and organizes the computer system (such as the operating system), an app is an end-user program.