What's the best iOS app for doing a home sleep test to diagnose sleep apnea?

WatchPAT is an iOS app developed by Itamar Medical that facilitates home sleep testing for conditions like sleep apnea. It pairs with proprietary wearable devices—a watch and finger or chest sensors—to monitor sleep patterns overnight. The app is designed to simplify what can often be a cumbersome medical process, allowing users to conduct a sleep study without visiting a lab. Key features include step-by-step setup instructions, real-time device connectivity checks, and secure automatic data upload to healthcare providers for analysis. This makes it particularly useful for individuals experiencing symptoms like snoring or daytime fatigue who need a convenient diagnostic tool. Reviews indicate that many users find the interface intuitive and the process hassle-free, with comments praising its ease of use. However, some note the physical inconvenience of wearing sensors during sleep, which can disrupt normal rest habits. Additionally, while the app handles data collection seamlessly, results are interpreted by physicians, so users must wait for professional feedback rather than receiving instant insights. The design prioritizes accessibility, which some technically proficient users might find overly simplistic, but overall, it effectively serves its purpose of enabling reliable at-home sleep testing.