The term "app" has become popular, and in 2010 was listed as "Word of the Year" by the American Dialect Society. Technologist Michael Saylor has referred to the newer mobile app enabled smartphones as "app-phones" for their distinction from the earlier smartphone models. He states that these app-phones can support many applications and programming languages and should be considered computers first and phones second.
Mobile apps were originally offered for general productivity and information retrieval, including email, calendar, contacts, and stock market and weather information. However, public demand and the availability of developer tools drove rapid expansion into other categories, such as mobile games, factory automation, GPS and location-based services, banking, order-tracking, and ticket purchases. The explosion in number and variety of apps made discovery a challenge, which in turn led to the creation of a wide range of review, recommendation, and curation sources, including blogs, magazines, and dedicated online app-discovery services.
The popularity of mobile applications has continued to rise, as their usage has become increasingly prevalent across mobile phone users. A May 2012 comScore study reported that during the previous quarter, more mobile subscribers used apps than browsed the web on their devices: 51.1% vs. 49.8% respectively.