Following major setbacks in teaching and learning over the past two years and now engaging in face-to-face teaching post-COVID, one of the major challenges for teachers is to keep students engaged and motivated in order to learn and stay focused in the classroom. On the other hand, teachers in Oman have long been tackling the issue of teaching vocabulary to students in the foundation level English courses. To this end, this study examined the effectiveness of using Mentimeter, a Student Response System (SRS), to enhance vocabulary learning for productive skills in the ELT general foundation program. By using Mentimeter, students can collaborate interactively, yet anonymously, with their teachers and peers through an engaging online platform. This collaborative SRS expands the students’ vocabulary knowledge through a variety of item types, such as word clouds, quiz competition, open-ended questions, and the newest feature, ‘Pin on Image’. An action research was conducted with 50 students using pre- and post-test, questionnaire and semi-structured interviews. The results of this study indicate the beneficial aspects of integrated learning through innovative technological tools to boost students’ performance in productive skills. In addition to boosting vocabulary retention, this technological tool allows students to overcome demotivation and helps teachers to create more effective and interactive lessons to achieve learning and teaching goals. Overall, the implications can be constructive for educators in making use of Mentimeter to enhance students’ vocabulary knowledge.