An input apparatus (2000) includes a position calculation unit (2020) and an input recognition unit (2040). The position calculation unit (2020) calculates a position of a marker included in a captured image. The marker is attached to the body of a user or is a part of the body of the user. The captured image is generated by a camera at a timing based on a result of detection by a sensor attached to the body of the user. The input recognition unit (2040) recognizes input specifying a location separated from the marker on the captured image on the basis of the calculated position of the marker. The location specified by the input is a location separated from the marker.