Highlights ■ Smartphone-based training improved functional capacity in older adults. ■ Remote and in-person supervision led to similar gains in functional capacity. ■ Postural balance improved comparably in both groups. ■ Lower limb strength improved only in-person supervision with exercise App. ABSTRACT Introduction: Population aging is a significant global challenge, demanding strategies that promote healthy aging. Regular physical activity is crucial for maintaining functional capacity, quality of life, and preventing chronic diseases in older adults. However, sedentary behavior remains high, […]