Tire changer apparatus for the assembly and/or disassembly of tires (P) from a rim of a wheel (R) of a vehicle, said tire changer apparatus comprising: - a base , - a drive unit coupled to the base and configured to receive and rotate around a rotation axis (Z) at least one wheel (R) of a vehicle; - a frame emerging from the base , wherein the drive unit is movable with respect to the base , along a predetermined direction (X) transverse, optionally orthogonal, to the rotation axis (Z), close to and away from the frame , - at least one first and one second device each of which comprises: o at least one arm hinged to the frame and configured to rotate around a respective axis (Y, Y') substantially parallel to the rotation axis (Z) of the wheel (R), o at least one tool terminally carried by the arm and configured to operate on a rim and/or a tire of a wheel (R) carried by the drive unit , - at least one translation actuator active on the drive unit and configured to move the latter along the predetermined direction (X) close to and away from the frame , between a plurality of work positions, wherein the rotation axis (Z) of the wheel (R) and the predetermined direction (X) define an ideal plane (P) of movement of the drive unit , wherein the tire changer apparatus comprises at least one interconnection system configured to connect in movement the first and second devices with the drive unit , the interconnection system being configured to rotate the arms of the first and of the second device during the movement of the drive unit along the predetermined direction (X), characterized by the fact that the first and second devices are configured to arrange the rotation axes (Y, Y') of the respective arms on opposite sides with respect to said ideal plane (P). - a base , - a drive unit coupled to the base and configured to receive and rotate around a rotation axis (Z) at least one wheel (R) of a vehicle; - a frame emerging from the base , wherein the drive unit is movable with respect to the base , along a predetermined direction (X) transverse, optionally orthogonal, to the rotation axis (Z), close to and away from the frame , - at least one first and one second device each of which comprises: o at least one arm hinged to the frame and configured to rotate around a respective axis (Y, Y') substantially parallel to the rotation axis (Z) of the wheel (R), o at least one tool terminally carried by the arm and configured to operate on a rim and/or a tire of a wheel (R) carried by the drive unit , o at least one arm hinged to the frame and configured to rotate around a respective axis (Y, Y') substantially parallel to the rotation axis (Z) of the wheel (R), o at least one tool terminally carried by the arm and configured to operate on a rim and/or a tire of a wheel (R) carried by the drive unit , - at least one translation actuator active on the drive unit and configured to move the latter along the predetermined direction (X) close to and away from the frame , between a plurality of work positions, wherein the rotation axis (Z) of the wheel (R) and the predetermined direction (X) define an ideal plane (P) of movement of the drive unit , wherein the tire changer apparatus comprises at least one interconnection system configured to connect in movement the first and second devices with the drive unit , the interconnection system being configured to rotate the arms of the first and of the second device during the movement of the drive unit along the predetermined direction (X), characterized by the fact that the first and second devices are configured to arrange the rotation axes (Y, Y') of the respective arms on opposite sides with respect to said ideal plane (P). <EOS>