The US mobile market is growing rapidly, with over 100 million new subscriptions expected by 2015. Smartphones are driving this growth, and are projected to increase their market share of total subscriptions from 26% to 57% over this period. Android devices are seeing the most dramatic growth at 400%, which will increase their share of the smartphone market to 44% by 2015. Along with this growth in smartphones and subscriptions comes increases in mobile internet and app usage, with smartphones projected to account for 86% of mobile internet users by 2015. Mobile messaging also continues expanding, with over 200 million active users expected in the US by 2015.