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 report dated October 21, 1999 (except Note 12, as to which the date is November 5, 1999), in the Registration Statement, as amended, (Form S-1 No. 333-90873) and related Prospectus of Apropos Technology, Inc. dated 2000. Ernst & Young LLP Chicago, Illinois The foregoing consent is in the form that will be signed upon the effective date of the stock split described in the first paragraph of Note 12 to the consolidated financial statements. /s/ Ernst & Young LLP Chicago, Illinois January 13, 2000