Mobile technology evolution has greatly affected our lives, in terms of performing our daily tasks more efficiently and effectively.  It includes recent advances in voice-enabled technology empowered by artificial intelligence, machine learning and natural language processing. Then again, technology evolution has created a problem for low and post-literate population in terms of understanding and using mobile devices with complex functionality. Low- and post-literate individuals are the ones who have difficulties either reading a text or understanding a new technology. 

We propose a new technology acceptance evaluation model UTAUT-QiU with the aim of assessing both user acceptance of text free mobile applications’ user interface (MUI) and MUI’s quality-in-use.  We intend to increase the quality-in-use of MUI for low- and post-literate users by applying text-free approach combined with voice as a service. UTAUT-QiU is inspired by UTAUT (Unified Theory of Acceptance and Use of Technology) and integrates it with Quality-In-Use model for Mobile Applications.  The UTAUT-QiU model is used to investigate empirically the effect of text free UI approach on low- and post-literate users in performing their daily tasks with the help of mobile applications.