An apparatus for detachably holding a portable electronic device, the apparatus including a receiving part for the device and closure means, the receiving part including a base for supporting the device, wherein the closure means is movably mounted relative to the receiving part, the closure means including a lever and fixing element, the fixing element arranged on a side of the receiving part opposite the base, the fixing element designed to exert a holding force in the direction of the base onto the device to be held, the lever mounted rotatably on the fixing element via a first swivel pin, the apparatus further including a holding element fixed to the receiving part, a locking element coupled to the lever, and a stop for the locking element, the locking element designed to block the movement of the closure means relative to the receiving part and release movement of the closure means.