Abstract
With the growing popularity of the Internet of Things (IoT), the development of applications harnessing this technology is becoming increasingly widespread and accessible. Moreover, high-performance, and real-time applications necessitate the use of a low-latency protocol. Given these factors, this study aims to analyse Message Queue Telemetry Transport (MQTT) protocol used in combination with WebSocket for IoT applications. The comparison employs experimental tests used to determine data transfer capabilities, latency, and other performance metrics.