Zygo is a free iPhone app developed by Swimmersive Co. It is designed to enhance your swimming experience with guided workouts paired to music. With a variety of content created by coaches for all levels, Zygo offers something for everyone, whether you're a beginner looking for technique drills or a seasoned triathlete in need of training plans.

One of the key features of Zygo is the tempo trainer, which helps you maintain a consistent pace during your swim workouts. Additionally, the app allows you to track various metrics related to your swimming performance, such as distance covered and calories burned. This can be useful for monitoring your progress and setting goals.

Zygo also offers leaderboards, allowing you to compete with other users and see how you rank. Furthermore, the app provides live classes, giving you the opportunity to participate in real-time swimming sessions guided by expert coaches.

It's worth noting that Zygo requires access to HealthKit in order to record your swimming distance. This integration with HealthKit ensures that your workout data is accurately captured and can be seamlessly synchronized with other fitness apps and devices.

Overall, Zygo is a comprehensive app that enhances your swimming workouts with guided content, metric tracking, and interactive features. Whether you're a recreational swimmer or a competitive athlete, Zygo can help you take your swimming to the next level.