This paper presents the findings of a systematic review and bibliometric analysis aimed at exploring theoretical models and empirical studies on user acceptance of fintech innovations. Following the PRISMA guidelines, 58 studies published after 2020 were identified through a comprehensive search of the Scopus database. The literature reflects a strong reliance on established models, such as the Technology Acceptance Model and the Unified Theory of Acceptance and Use of Technology; and extensions of these theories/models included study variables such as trust, perceived risk and regulatory impacts. Empirical findings consistently highlight perceived usefulness, ease of use, trustworthiness, and the regulatory environment as important factors that affect user acceptance in a variety of Fintech domains, including mobile payments. The review emphasizes the importance of contextual factors, the perceptions of the users, and the regulatory framework in the driving influence of acceptance behavior. Such longitudinal studies, combined with the examination of emerging fintech innovations, will lead to a further richness of theoretical frameworks and applied practices.