An application designed for the Android operating system that facilitates the uninterrupted operation of a service or task across different devices or contexts. For instance, a user could begin composing an email on a desktop computer and seamlessly continue working on it using the application on an Android smartphone or tablet, without losing any progress.
Such applications offer significant advantages, including enhanced user convenience, improved productivity, and greater flexibility in managing workflows. Historically, the need for these applications arose from the increasing prevalence of multi-device usage and the desire for a consistent user experience across diverse platforms. They address the fragmentation often encountered when transitioning between different operating systems and hardware.