An apparatus capable of smoothly injecting contents in an object into another object, an injection method, and an injection program. The apparatus includes a robotic arm device configured to grip a first container, and circuitry configured to recognize a flowrate of contents while injecting an amount of the contents from the first container into a second container, and control a tilt of the first container using the robotic arm device to inject the contents into the second container according to the recognized flowrate of the contents.