RhythmCam-Heart Rhythm Checker is an iPhone application designed to monitor and record your heart rhythm. With this app, you can keep track of your heartbeat's fluctuations, detect any abnormalities, and check your heart's regularity. The app also provides a history chart to track the changes in your heartbeat over time. Additionally, it supports the synchronization of heart rate data with "Apple Health (HealthKit)" and other health information.

The app is developed by FocalTech Smart Sensors Co.Ltd. and falls under the Education & Reference category, with a subcategory of Medicine. It is available as a full version and offers a seven-day heart rate variation analysis report that you can use as a diagnostic reference with your doctor. However, the app's efficacy and limitations depend on individual phone performances, and you should read the app's Chinese manual before using it.

Please note that RhythmCam-Heart Rhythm Checker is not a substitute for medical evaluation or diagnosis. The app's analysis results are for personal or medical personnel's use only to track and evaluate heart rhythm status. Moreover, you should not modify any existing medical treatment or medication without consulting your physician. Lastly, the app may cause your phone's flashlight to overheat.