Usability of Mobile Health Apps from the Patient Perspective: A Systematic Review

Mobile Health (mHealth) apps are widely used to support care, but patient-focused usability evidence remains fragmented. We conducted a systematic review (January 2012-September 2025) of PubMed, IEEE Xplore, and Scopus to identify studies assessing usability from the patient perspective using standardized questionnaires or structured interviews. Of 490 records retrieved, 146 studies met the inclusion criteria. Fifteen disease categories were represented, most commonly mental health, neurology, metabolic/endocrine, and oncology. Overall, 24 distinct usability assessment methods were reported, and most studies relied on a single method. Among standardized instruments, the System Usability Scale (SUS) was most common (50 studies, 34.3%); the mean SUS score across these studies was 76.37, above the acceptability benchmark of 68. Overall, mHealth apps were generally rated as usable by patients, but future work should adopt mHealth-specific standardized measures, enroll larger samples, and report methods transparently to enable benchmarking and inform better app design.