Sarah Jayne Fitness is a free lifestyle application designed for iPhone users, focusing on health and fitness. It offers a user-friendly interface that allows users to book classes online effortlessly and create personalized exercise programs or choose from various options provided by the club. Users can track their workout progress, monitor body measurements, and participate in fitness challenges to stay motivated and engaged.

In addition to workout management, Sarah Jayne Fitness includes features for social interaction, enabling users to connect with fellow members and access club news, offers, and events. The app also boasts a Recipes Library and a Video Workout Library for diverse fitness and nutrition resources. With Apple Health App integration, users can import data from various wearable devices to accurately track daily steps, distance, and calories burned, enhancing their overall fitness journey.