Alone time with healthcare providers is vital for adolescents, as recommended by several professional organizations, as it enhances health service utilization, empowers adolescents to manage their health, and facilitates discussions on sensitive issues. Despite its importance, only 40% of adolescents have private conversations with clinicians during visits. mHealth technology offers a promising solution for effective interventions to promote alone time with providers for adolescents, parents, and healthcare providers. This pilot study aims to evaluate the preliminary efficacy of a technology-based intervention designed to increase alone time with providers during well-adolescent visits (WAVs) and its impact on trustworthiness, parent-adolescent communication, sexual risk communication, parental monitoring, and parental support. After providing consent, participants accessed a study website to complete a baseline survey, interact with four modules, and complete a post-test survey one month after WAVs. Surveys assessed alone time, trustworthiness, parent-adolescent communication, sexual risk communication, parental monitoring, and parental support.