Exhibit 31.1

CERTIFICATION PURSUANT TO RULE 13A-14 OR 15D-14 OF THE SECURITIES EXCHANGE ACT
OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Patrick Soon-Hock Lim, certify that:

     1.   I have reviewed this quarterly  report on Form 10-Q of Secured Digital
          Applications, Inc.;

     2.   Based on my  knowledge,  this  report  does  not  contain  any  untrue
          statement  of a  material  fact  or  omit to  state  a  material  fact
          necessary to make the statements  made, in light of the  circumstances
          under which such  statements were made, not misleading with respect to
          the period covered by this annual report;

     3.   Based on my knowledge,  the financial statements,  and other financial
          information  included in this report,  fairly  present in all material
          respects the financial condition, results of operations and cash flows
          of the small business issuer as of, and for, the periods  presented in
          this report.

4.   The small business issuer's other certifying officers and I are responsible
     for establishing and maintaining disclosure controls and procedures (as
     defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the small
     business issuer and have:

     a)  Designed such disclosure controls and procedures, or caused such
         disclosure controls and procedures to be designed under our
         supervision, to ensure that material information relating to the small
         business issuer, including its consolidated subsidiaries, is made known
         to us by others within those entities, particularly during the period
         in which this annual report is being prepared;

     b)  Evaluated the effectiveness of the small business issuer's disclosure
         controls and procedures and presented in this report our conclusions
         about the effectiveness of the disclosure controls and procedures, as
         of the end of the period covered by this report based on such
         evaluation; and

     c)  Disclosed in this report any change in the small business issuer's
         internal control over financial reporting that occurred during the
         small business issuer's most recent fiscal year that has materially
         affected, or is reasonably likely to materially affect, the small
         business issuers internal control over financial reporting; and

5.   The small business issuer's other certifying officers and I have disclosed,
     based on our most recent evaluation of internal control over financial
     reporting, to the small business issuer's auditors and the audit committee
     of registrant's board of directors (or persons performing the equivalent
     function):

     a)  All significant deficiencies and material weaknesses in the design or
         operation of internal controls over financial reporting which are
         reasonably likely to adversely affect the small business issuer's
         ability to record, process, summarize and report financial information;
         and

      b) Any fraud, whether or not material, that involves management or other
         employees who have a significant role in the small business issuer's
         internal control over financial reporting.

Date:  November 14, 2007                       /s/ Patrick Soon-Hock Lim
                                               ---------------------------------
                                               Patrick Soon-Hock Lim
                                               Chief Executive Officer