This chapter explores students' engagement in a telecollaboration project between a Spanish and an American university. Students' cognitive, emotional, and behavioral engagement were evaluated throughout the project. A total of 53 students participated in an online exchange during one and a half months through two different applications, WhatsApp representing the text-based environment and Jitsi representing the synchronous videoconferencing platform. The engagement construct was explored using pre and post measures as well as tracking students' conversation in the platforms. Results yielded high levels of cognitive engagement as a result of the interaction. Values for emotional engagement were found to be higher in the instant messaging platform and behavioral engagement did not present significant values. Implications and recommendations for future research were drawn.