Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the use in this Registration Statement on Amendment No. 1 to Form S-1, of our report dated August 10, 2020, relating to the balance sheet of FinTech Acquisition Corp. IV as of December 31, 2019 and 2018, and the related statements of operations, changes in stockholder’s equity and cash flows for the year ended December 31, 2019 and for the period from November 20, 2018 (inception) through December 31, 2018, and to the reference to our Firm under the caption “Experts” in the Prospectus.

/s/ WithumSmith+Brown, PC

New York, New York

September 11, 2020