Difference between Standalone app , SPA and Salesforce 1 app

Stand Alone Application

The standalone applications are the applications that can run only on the one system on which it is being installed. The application which being developed using c and c++ are the standalone application because do not form platform independency.

Web Application

A web application or web app is a client–server software application which the client runs in a web browser The UI is rendered on a client machine and Business logic and data storage are on the servers.

single-page application

A single-page application (SPA) is a web application that fits on a single web page with the goal of providing a more fluid user experience similar to a desktop application.The appropriate resources are dynamically loaded and added to the page as necessary, usually in response to user actions.

Salesforce1 App

Salesforce1 is a new mobile application provided by Salesforce.