Abstract
Medical student education may incorporate adjunctive teaching methods to enhance procedural skill competencies. A ‘Just-in-Time Training’ (JITT) smartphone application (app) was developed in New Zealand to enhance the undergraduate clinical skills teaching programme. The Clinical Skills app was developed at the University of Otago Christchurch Simulation Centre. Content was based on the taught undergraduate programme and includes checklists and photo/video guides for 19 clinical procedures. Usability has been assessed annually using the System Usability Scale (SUS) since 2022, and mean scores > 73/100 represent good usability. The app has been open source since 2017 for iPhone Operating System (iOS) and 2019 for Android users. Cumulative downloads and daily user numbers are recorded. The SUS was completed by 251 medical students over three years; the mean score increased from 74/100 in 2022 to 87/100 in 2024 (p < 0.001). The cumulative international downloads between 2017–2024 were 706,607. In 2023, there were 7,437 international downloads, increasing by 104% to 15,193 users in July 2024, with users located in 155 countries, mainly New Zealand (22%), and China (18%). The increasing downloads of the JITT Clinical Skills app suggest that it is a popular learning tool to supplement clinical skills teaching.