EXHIBIT 23.1 CONSENT OF INDEPENDENT AUDITORS We consent to the reference to our firm under the caption "Experts" and to the use of our reports dated January 13, 2000, in the Registration Statement, as amended, (Form S-1 No. 333-90873) and related Prospectus of Apropos Technology, Inc. dated February 10, 2000. /s/ Ernst & Young LLP Chicago, Illinois February 10, 2000