An exercise logging and feedback mobile app was developed for Evaluating Influences of App-Based Feedback on Exercise Autonomy in Resistance Trained Adults. Using the Self-Determination Theory (SDT) theoretical framework, this study hypothesizes that individuals who receive feedback-driven health insights from a trained generative AI model score higher in their SDT-associated Behavior Regulation Exercise Questionnaire (BREQ) Relative Autonomy Index (RAI) scores compared to individuals who receive static health insights.