Fitness tracking apps contribute to exercise adherence by providing users with personalized data and feedback on progress. Features such as goal-setting, reminders, and tracking metrics can motivate users to stay committed to their fitness routines. These apps often include social sharing options, fostering accountability and community support. Gamified elements may also encourage user engagement, making fitness more enjoyable. Overall, fitness apps serve as valuable tools for people seeking to maintain consistent exercise habits and achieve their health goals.