Abstract: Apparatus and systems for use in cleaning the gap or crevice under a person's fingernails. The inventive apparatus includes one or more finger alignment guides which assist in maintaining the fingers in a desired orientation and a mechanical scrubber, such as a brush, individual strands, or a set of water jets, which are able to mechanically remove dirt and other foreign debris from the gap under a person's fingernails. The cleaning system further includes a cleaning liquid, such as an aqueous solution or other solvent-based liquid or solution that is able to assist the mechanical scrubber in removing foreign debris from under the fingernails. The alignment guide may be stationary while movement of the mechanical scrubber provides the scrubbing action. The mechanical scrubber will typically be driven by a motor or pump. Alternatively the fingers may move relative to the scrubber in order to provide the scrubbing action.