Cloud Business Apps
Create Cloud Business Apps in Visual Studio
By using the Cloud Business App template in Visual Studio, you can quickly and easily create line-of-business apps that are hosted on SharePoint for Office 365 and based on Visual Studio LightSwitch technologies. Users can download and run cloud business apps on desktop computers and most mobile devices.
Visual Studio LightSwitch is a development environment designed to simplify and shorten the development of businesses applications and data services. LightSwitch makes it easy to create data-centric business applications that can consume a variety of data sources and create clients that can run on a variety of devices. With LightSwitch you can:
- Build HTML5-based apps that run on all modern devices
- Consume and aggregate multiple data sources like databases, SharePoint and OData
- Eliminate plumbing code and focus on what makes your application unique
- Have flexible deployment and cloud hosting options including Azure and Office 365
- Trust that your solution is built on best-of-breed technologies and practices
SharePoint Apps
Create Apps for SharePoint by using Visual Studio
By using Visual Studio, you can create apps for SharePoint, which are solutions that have a small footprint and that use standards-based technologies such as HTML5, JavaScript, and OAuth. You typically design one of these apps to help users complete a specific task or related set of tasks. For example, you can create an app to track travel expenses or maintain a team sign-up sheet.
What you can do in an app for SharePoint > Using SharePoint Components
Almost every major type of SharePoint component can be part of an app for SharePoint, including custom content types, list templates, list instances, pages, workflows, event handlers, and many more. You can also have built-in Web Parts, including a Silverlight Web Part that hosts a Silverlight application and an app part that wraps an IFrame.
refer to, http://sharepoint.stackexchange.com/questions/101661/sharepoint-apps-vs-cloud-business-apps