A variety of factors can influence an application's popularity, including its design. People may not be able to figure out how to use the app if the design is unclear or difficult to use, and they are less likely to use it again. Users may be repelled from using an application if the design is unappealing or does not match their tastes. People may be less inclined to use an application if it is difficult to browse or discover the needed information. Similarly, if a program crashes frequently or is unreliable, users will be less inclined to use it. Finally, if an application's design isn't adapted to the needs of its users, it may lose appeal.