Although studies using student response systems (SRSs) within the English as a foreign language (EFL) classroom are relatively rare, there is increasing evidence from a range of disciplines to highlight the potential behind application of these systems for student learning. Consequently, this study contributes to filling this gap by demonstrating the efficacy of SRS-integration in the EFL reading classroom for formative assessment when supported by teacher-interaction and peer-interaction utilization techniques. Relying on a quasi-experimental design, results suggest that a Plickers SRS-integrated classroom can provide a digitally interactive learning environment and active learning opportunities, particularly when coupled with a peer-interaction technique. It also enhances Korean EFL learner engagement with content while supporting the development of reading comprehension skills. Further, findings indicate that learners are receptive to ongoing SRS utilization as an alternative to traditional methods, viewing it as useful for highlighting their knowledge gaps, focusing their attention, and stimulating their engagement.