The internet is bombarded daily with new apps (app is the short term for application) that are geared towards new technology, new software systems, new process systems and new marketing tools.
They are all focused on winning market share with their new apps. This focus is driven by one main objective which is to make money or to make even more money.
The search for a killer app is an on-going process. A killer app is one that is accepted by most as the best in the market at that point of time.