App

App, apps or APP may refer to:

Computing

Mobile app, software designed to run on smartphones and other mobile devices
Application software that causes a computer to perform tasks for computer users
Web application or web app, software designed to run inside a web browser
Adjusted Peak Performance, a metric to measure computing performance in 64-bit processors and above
Application Portability Profile, NIST standards and specifications for the Open System Environment
Atom Publishing Protocol (or AtomPub), an Atom (standard) protocol to create and update web resources

Advanced Placement Program, program offering college-level curriculum and examinations to high school students
Appalachian State University, a university in Boone, North Carolina, United States
Appalachian State Mountaineers, the university's athletic program
Assessing Pupils Progress, an assessment methodology used in schools in England and Wales

Acute-phase protein, a class of proteins whose concentration changes in response to inflammation
Amyloid precursor protein, a protein whose fragments are associated with Alzheimer's disease and other neurological disorders
Advanced Practice Provider, or Mid-level practitioner, are a class of healthcare providers with more training and responsibility than registered nurses and less than physicians

African Prisons Project, a UK-based NGO
Alberta Provincial Police, a Canadian police force from 1917-1932
American Principles Project, a libertarian and conservative political think tank
Asbury Park Press, a newspaper of Monmouth County, New Jersey
Asia-Pacific Partnership, an international environmental protection alliance
Asia Pulp & Paper, pulp and paper company based in Jakarta
Associated Press of Pakistan, national news agency of Pakistan
Association of Professional Piercers, an international organization for safe and professional body piercing

[Alliance populaire progressiste] Error: {{Lang}}: text has italic markup (help) or People's Progressive Alliance, a political party in Mauritania
Animal Protection Party, a British political party
Anticlerical Progress Party REASON, a Polish political party
Australian Protectionist Party, an Australian political party
Austrian People's Party, an Austrian political party