Purpose: To refine a motor competence assessment app prototype, enabling its redesign. Method: Workshops were conducted to inform the prototype development. App’s usability was evaluated on its ability to communicate relevant information to the teachers (n = 9). A “think out loud” protocol was applied by the users. Results: Both workshops refined the app, namely: interface, background, acceptability/feasibility, results, teachers themselves, and effectiveness. Competitor analysis revealed recommendations for the wireframe, visuals, and proposed skills to be assessed. The need to include a demonstration for first-time users, video guidance, and links to more information for each skill was also raised. There was a recommendation on the design brief features and experiences. Conclusions: This study will provide guidance in discovering how digital solutions may shape motor competence assessment. The usability testing process with the teachers provides insight on the essential/desirable features required on these apps, enabling the prototype’s redesign to meet the users’ needs.