As mobile hotel applications become increasingly integral to guest experiences, the psychological understanding and perceptual factors that influence their relevance is critical for all of hospitality industry. This research examines the influence of Technology Readiness (TR) made up of optimism, innovativeness, discomfort, and insecurity in affecting users’ intention to utilize mobile hotel apps, with perceived usefulness and trust as the mediating factors. The quantitative approach with Structural Equation Modeling (SEM) was applied to data collected from 200 mobile hotel app users in five-star Jakarta hotels. The findings show that perceived usefulness and trust positively have strong relationships with usage intention, and insecurity negatively affects trust. Surprisingly, optimism, innovativeness, and dis-comfort did not have any significant effects. The conclusion is that functional perceptions and emotional assurance have more central positions compared to per-sonal technology attitudes in the current context. The study aims to give the extension of TAM and TR models in the hotel industry and offers actionable in-sights for app developers and hotel managers seeking to maximize digital guest engagement.