EXHIBIT 99.1

              CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
                            AS ADOPTED PURSUANT TO
                SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

      In connection with the Annual Report on Form 10-K of Applix, Inc. (the
"Company") for the period ended December 31, 2002 as filed with the Securities
and Exchange Commission on the date hereof (the "Report"), the undersigned,
David C. Mahoney, Chief Executive Officer of the Company, hereby certifies,
pursuant to 18 U.S.C. Section 1350, that:

      (1) The Report fully complies with the requirements of Section 13(a) of
15(d) of the Securities Exchange Act of 1934; and

      (2) The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company.
                                          /s/ David C. Mahoney
                                         -------------------------------------
Dated:       March 31, 2003               David C. Mahoney
                                          Chief Executive Officer


A signed original of this written statement required by Section 906 has been
provided to Applix, Inc. and will be retained by Applix, Inc. and furnished to
the Securities and Exchange Commission or its staff upon request.