CART CardioTracker is an iPhone application developed by Sky Labs Inc. falling under the Education & Reference category, specifically focusing on Medicine. This app utilizes continuous collection of bio-signals in daily life to provide data on irregular heart waves, oxygen saturation, and heart rate. Users can monitor and manage their health status through the health data offered by CART App.

By analyzing PPG and ECG signals acquired from CART-Ring, CART App delivers results regarding the user's health status. It presents statistical data such as graphs, lists, and averages based on the results. With the CART-Ring worn, automatic measurements of irregular heart waves, oxygen saturation, and heart rate are taken, allowing users to track results on a daily, weekly, and monthly basis. Real-time detection of irregular heart waves and oxygen saturation status is also available during self-measurements.