A review of the iOS and Android reveals an interesting trend in the development of the smart phones. From this study, it is evident that Android and iOS are the newest technologies in the mobile phone sector that have made the concept of technology convergence a reality. The phenomenal adoption of Android and iOS started not more than a decade ago but their impact has been felt all over the world. There is a lot of convergence between Android and iOS. Both operating systems have similar features although iOS has more than 600,000 applications while Android has slightly more than 570,000 applications.