killer app


Definition of killer app

: a computer application of such great value or popularity that it assures the success of the technology with which it is associated broadly : a feature or component that in itself makes something worth having or using

Examples of killer app in a Sentence

Recent Examples on the Web But the really killer app is the ZR2's front and rear locking differentials, which mean that the truck can also handle the kind of technical, demanding trails that were heretofore the exclusive domain of the Wrangler Rubicon. Ezra Dyer, Popular Mechanics, "The Six Best Trucks You Can Buy Right Now," 26 Nov. 2019 Google was throwing an unprecedented amount of resources behind its mobile efforts and, by 2010, had grown too powerful, with something like six major releases of Android and a suite of killer apps like Gmail, Search, YouTube, and Google Maps. Ron Amadeo, Ars Technica, "Bill Gates calls failure to fight Android his “greatest mistake”," 24 June 2019 The Note10+ also has a fourth depth camera, which can be used for 3D-scanning (but still needs to find its killer app). Washington Post, "Galaxy Note10 hands on: What Samsung’s $950 big new phone adds — and takes away," 7 Aug. 2019 The Note 10+ also has a fourth depth camera, which can be used for 3-D-scanning (but still needs to find its killer app). Geoffrey A. Fowler, The Denver Post, "Galaxy Note 10 hands on: What Samsung’s $950 big new phone adds — and takes away," 21 Aug. 2019 As these networks spread, e-mail emerged as the killer app for bringing asynchronous communication to the office. Cal Newport, The New Yorker, "Was E-mail a Mistake?," 6 Aug. 2019 Their killer app is usually said to be factoring large numbers, which are the key to modern encryption. Quanta Magazine, "Job One for Quantum Computers: Boost Artificial Intelligence," 29 Jan. 2018 And the first killer app may have finally appeared: Windows Sandbox, a virtual Windows-within-Windows that’s quietly receiving solid reviews. Mark Hachman, PCWorld, "How Microsoft could make Windows 10 Pro the OS for PC enthusiasts," 30 July 2019 One day, somebody will find a use for it — a killer app that will make 5G phones indispensable. Hiawatha Bray,, "5G is coming, but there’s really no need to rush in," 17 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'killer app.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of killer app

1988, in the meaning defined above

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Time Traveler for killer app

Time Traveler

The first known use of killer app was in 1988

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Statistics for killer app

Last Updated

22 Jan 2020

Cite this Entry

“Killer app.” The Dictionary, Merriam-Webster Inc., Accessed 23 January 2020.

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More Definitions for killer app

killer app


English Language Learners Definition of killer app

: an extremely valuable or useful computer program

Comments on killer app

What made you want to look up killer app? Please tell us where you read or heard it (including the quote, if possible).


out of the ordinary or unreasonable

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