An ultrasound diagnostic apparatus includes: a hardware processor which generates sound ray data and displays ultrasound images based on the sound ray data； and an input receiver. The hardware processor stores playback data used for displaying the ultrasound images. The hardware processor performs, in a two-screen display control for displaying a live moving image on the ultrasound images and playback data on the live moving image side by side in a display, changes display control on the live moving image if the input receiver receives a first input operation, and changes display control on the playback image while continuing displaying the live moving image if the input receiver receives a second input operation.
