Tinnitus, the perception of sound without an external source, can significantly affect an individual's quality of life, particularly when caused by noise exposure. This case study explores the combination of Tinnitus Retraining Therapy (TRT) and the ReSound Relief app in managing acute tinnitus. A 37-year-old male, with minimal hearing loss and a moderate Tinnitus Handicap Inventory (THI) score, was treated using TRT, including counseling, Cognitive Behavioral Therapy (CBT), and sound therapy via the app. The ReSound Relief app offered customizable soundscapes such as white noise and environmental sounds. Following treatment, the patient reported a reduction in tinnitus severity, loudness, and annoyance, with a significant decrease in the THI score. These results suggest that combining TRT with the app’s sound therapy can effectively manage acute tinnitus, providing both auditory enrichment and psychological benefits. Further research is needed to validate these findings and improve the app’s features for broader use.