APP

(Computers) implementation, utilization; program that performs a defined task (like word processors, electronic spreadsheets, graphics programs, etc.)

App is short for Application. It could be an abbreviation for:Appalachian State UniversityAppalachian MountainsAPP could mean:Amyloid precursor protein, a protein fragment associated with some neurological disordersAssociated Press of PakistanThe Alan Parsons Project, a progressive rock bandApplication software, a type of computer programAtom Publishing Protocol, a protocol for creating and updating web resourcesAsia Pulp & PaperAlberta Provincial Police.APP (filename), filename extension. Application for Symbian OSAsia-Pacific Partnership
See more at Wikipedia.org...

Also see Binary file An executable or executable file, in computer science, is a file whose contents are meant to be interpreted as a program by a computer.While a file in source form may be executable, such a file is usually referred to as a "script." Most executable files contain the binary representation of machine instructions of a specific processor (in which case the executable may also be referred to as a binary), or they may be binary pseudocode for a virtual machine. A non-source executable file is also called an object program. Some operating systems designate executable files by specific naming convention (such as the name ending in a filename extension ".bin" or ".exe") or noted alongside the file in its metadata (such as the "execute" permission bits under Unix-like operating systems). However, unless a file contains properly-formatted computer instructions, it will not actually execute properly even if it is so marked.
See more at Wikipedia.org...

APP amyloid precursor protein. APP Amyloid ß protein precursor A membrane-spanning glycoprotein of unknown function, which is expressed in many [more]App - Community and Resources

ext., extension, telephone extension, additional telephone, branch of a telephone network

application program