This study explored the use of WhatsApp chat group as a platform for extending learning in a blended learning classroom with a small group of undergraduates in the Malaysian context. The aim was to provide learners with the opportunity to reflect the strengths and challenges of using the WhatsApp as an extended learning platform. The students' reflections were further supported by the online interaction archives. Findings revealed that the majority of the students expressed the preference for WhatsApp in their reflections. However, certain problems were also identified in this study. Based on the findings the study has outlined certain pedagogical implications that can be a guide for the future use of apps in teaching and learning activities.