In a survey by Exchange hosting provider Intermedia, 76% of customer-activated mobile devices for the year through October ran Apple's iOS, mobile operating system with the majority of those being iPhones.
Android device makers Samsung and Motorola came in second and third with 12% and less than 6%, respectively.
Windows-powered smartphones and tablets accounted for just 1% of all activations in the 10-month period, about the same as BlackBerry.
"Interestingly, iPad activations have held relatively steady over the last 36 months, even as iPhone activations have continued to grow," Intermedia President Michael Gold told Computerworld. In October, for example, iPhone activations outnumbered those for iPads by more than four to one.
Intermedia says it's the world's largest Exchange hosting service outside Microsoft itself, with 90,000 customers that serve 700,000 users.