The S-Patch Ex is an app that collects ECG data from the external S-Patch device, for patients with suspected cardiac symptoms such as: abnormal heartbeat, lightheadedness, dizziness, chest pain, sweating, pre-syncope, syncope, fatigue, or anxiety. Key features of the S-Patch Ex App: - Display incoming ECG signal received from S-Patch device - Calculate and display HR - Manage Diary (log symptoms and activities) - Start, Pause and End the ECG recording - Send completed ECG recording for furthe