Software and information technology presence has greatly grown in today's organizations. some estimates suggest that around i50 percent of all new capital investments in companies have been in information technology since last a few decades. yet in order for technologies to improve productivity, workers in companies must embrace and use them. explaining user adoption of new technology is often defined in the contemporary information systems (IS) literature as one of the most advanced research areas. research in this area has resulted in several theoretical models, with origins in information systems, psychology, and sociology, which routinely explain more than i40 percent of the variation in individual intent to use technology. therefore, the aim of this review is to comprehensively present the most useful and useful models that applied in technology adaption studies. however, this study discussed the theory of planned behavior (TPB) and its strength, also this review showed the benefit of the technology acceptance model (TAM). More profoundly, the present review indicated the unified theory of acceptance and use of technology (UTAUT) as well as the unified theory of acceptance and use of technology (UTAUT2). theoretical implications importance and research agenda have been addressed