There is a certain semblance of an ecosystem to apps. Killer apps being at the top of the food chain feeding off of 10 second apps and the likes. Different apps are deemed as killer apps in a natural evolution. Access to corporate email used to hold that position, but now it is simply the norm, for example. Enterprise Apps Tech discusses the place of killer apps in "How Can Transactions Drive Enterprise Mobility Strategy?."
Productivity is the main driver, of course. Nucleus Research found an average productivity increase of 14.6% among companies that had empowered employees with mobile CRM software.
While there may be some must-have apps, the article advocates for a strategy other than the quest for the killer app:
However, instead of seeking to develop a single killer app, most companies today would be better off deploying a mix of sophisticated apps with simpler, highly-focused applications, or ‘10-second apps’. To ignore functions that can be satisfied by a 10-second app is to miss out on the full potential of an effective mobility strategy. With a single swipe and a couple of taps of the screen, users can update the business with a holiday request and have it instantly approved.
Companies are already finding that productivity is improved when employees that need access to mobile apps and the information that is held within them is granted through the connectivity an agile enterprise infrastructure provides.
Megan Feil, August 24, 2012