What's the best iOS app for logging symptoms with a wearable cardiac monitor?

MyZio is an iOS application developed by iRhythm Technologies to support patients using their wearable cardiac monitors, such as the Zio patch. This app is designed specifically for individuals undergoing extended monitoring periods, often 10 to 14 days, to detect arrhythmias or other heart issues. It allows users to log symptoms in real-time, including palpitations, dizziness, or custom entries for unspecified concerns, which streamlines communication with healthcare providers. The digital interface eliminates the hassle of paper diaries, reducing the risk of lost or inaccurate records. Users report high satisfaction with its ease of use, with one review stating, 'This is a very easily used app. The one thing I like the most about it is that it gives you an option to record symptoms that are not specified.' In practical terms, the app syncs data from the physical monitor, helping cardiologists analyze patterns and make timely decisions, which can be critical in emergencies—some users credit it with facilitating life-saving interventions. However, the app's effectiveness depends on the wearable device's adhesion and performance; reviews indicate occasional issues with patch discomfort, though this is separate from the software. For those prescribed a Zio monitor, MyZio enhances patient engagement by providing a clear, organized way to document health events. It's not a general fitness tracker, but a focused tool for clinical cardiac care, making it invaluable in diagnostic scenarios.