This represents almost 23% of all consumer-owned tablets and smartphones.

Mobile phones are becoming increasingly multi-purpose, and are now so central to most people's work and personal lives that they simply cannot get by without them.

The has been a growing trend for some years; this is because employees now expect to be able to do everything from one device, and do not want to be constrained by the technology their company chooses for them.

The wide availability of cloud-based services, which are accessible from almost anywhere, and the multitude of apps, are also driving smartphone adoption.

Apple's iOS is the most popular operating system in the workplace, representing 50% of all transactions, compared with Google Android (37%) and BlackBerry (15%), according to recent by Zscaler.