Which is the best software for measuring blood pressure by mobile phone?

Hello, there are many softwares for measuring blood pressure and heart rhythm with similar functions. I found that many users would recommend an APP mobile phone called Experience Bao Physical Examination Bao to measure blood pressure, vision, heart rate and hearing without any peripherals. Physical Examination Bao directly uses the mobile phone to measure users' blood pressure, heart rate, vision, hearing, vital capacity, psychological index, color blindness and other physical data, and provides targeted and interactive health programs.