The study assessed the impact of the Fitterfly digital program on glycemic control in 39 individuals with type 1 diabetes. Participants completed a 90-day program featuring digital tracking, personalized exercise, diet plans, and behavioral therapy. HbA1c levels were significantly reduced overall, with the largest improvements in participants under 25 years and those weighing up to 75 kg. The findings underscore the value of personalized digital coaching and continuous monitoring in managing type 1 diabetes and achieving sustainable lifestyle changes.