Freemium mobile games dominate the mobile app market, generating over 90% of revenue. They are becoming more social over time, as the most successful games employ social mechanics. The majority of non-paying mobile game users are women over 30, who favor match-three, solitaire, slots, and tycoon games. Retention rates for freemium games have nearly tripled from 16% to 41% since 2009, showing developers have abandoned short-term thinking and focus on long-term player relationships.