The present invention relates to a system for presenting changes in pulses by means of a pulse analysis application, which detects a user's own pulse and the pulse of another person, calculates synchronization between changes in the user's own pulse and the pulse of the other person by means of a pulse analysis application of a smartphone, and presents the result of the calculation, thereby enabling the climax of a M mutual change in pulses to be determined. The system includes: a plurality of biological signal sensors configured to acquire biological signals, and to wirelessly transmit the acquired biological signals； and a biological information checking terminal configured to display the biological signals transmitted by the plurality of biological signal sensors, to calculate synchronization between the plurality of biological signals by means of a pulse analysis application, and to display a result of the calculation as an event.
