Letsfit is a free iOS app developed by LETSFIT LLC that helps users track their physical activity, exercise, and overall health. The app provides a range of features that can help users improve their fitness and wellness. With Letsfit, you can track your daily steps, sleep hours, heart rate, and calories burned, and get professional interpretations over these data to help you make better decisions about your health.

One of the key features of Letsfit is its exercise data analysis, which allows you to record your exercise and see various data, including a detailed route and various exercise data analysis afterwards. Moreover, Letsfit can push CALL、SMS and other app notifications to the connected smartwatch, enabling you to mute, answer, or hang up on the connected device while receiving an incoming call. Letsfit is constantly updated to support more devices, with more reliability and exciting features.

Please note that while the screenshots shown represent features supported, devices might not have all the features listed. You can also connect Letsfit to synchronize data to Apple Health (HealthKit), to achieve data movement, data and consumed calories sleep simultaneous recording to Apple Health (HealthKit).