Images of majestic outer space are overwhelming. Also breathtaking are pictures of mysterious deep-sea fish. They are so brilliant that no explanation is needed. The same goes with ECG, which shows a miraculous brief moment of the electrical activity of the heart.​

This app is designed to display the beauty of ECG and help less experienced staff learn ECG in a fun manner. ECGs, followed by one-sentence interpretations, are presented from 300 cases like flash cards. The trivia for ECG is also included. I will be happy if you find the content to be attractive and practical.