Mobile applications that involve the interaction of two or more users are becoming more common nowadays, and the demand of good performance and availability by their users is increasing. This makes testing and automation of processes essential for delivering high-quality cross-device apps. In this paper, we present Kraken, a cross-device testing tool that enables a tester to write, run, and validate test scenarios that involve the interaction of more than two devices as well as its underlying implementation. The proposed tool uses APKs as input along with tests scripts wrote using the Gherkin syntax. Kraken is publicly available on GitHub https://thesoftwaredesignlab.github.io/KrakenMobile/ Videos: https://www.youtube.com/playlist?list=PLF5U8kfVgRcJ3RCHt7cWmwlqN93brbVW-