killer app


Also found in: Dictionary, Financial, Acronyms, Wikipedia.

killer app

A software application that is exceptionally useful or exciting. Killer apps are innovative and often represent the first of a new breed, and they are extremely successful. For example, in the late 1970s, the VisiCalc spreadsheet was the killer app for the Apple II, providing reason enough to purchase the hardware. VisiCalc was followed by Lotus 1-2-3 and Excel for the IBM PC. In the early 1990s, the Mosaic Web browser was the killer app for the Internet. It was quickly followed by Netscape and others. Contrast with filler app and app killer.
References in periodicals archive ?
When global computing is pervasive and everything is wired, there is no longer a single killer app.
Reality: No multi-billion-dollar, product category has ever emerged without a killer app
Corporate jugglers, magicians and free tchochkes are used to lure attendees to high-powered sales pitches for the next killer app.
Perhaps not, but there is more room than ever for innovation, especially when that innovation is based on a killer app that came and went almost unnoticed.