Exhibit 99.1

UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION

Introduction

On June 1, 2021, Kaleyra, Inc. (“Kaleyra”) and Vivial Inc. (“Vivial”) completed the acquisition by Kaleyra of the business owned by Vivial known as mGage (the “Merger”).

For the purpose of the preparation of the unaudited pro forma combined financial information the historical financial information of mGage has been derived from the unaudited historical condensed consolidated financial information for the five months ended May 31, 2021 of Vivial Networks LLC (“Vivial Networks”), a subsidiary of Vivial, which, together with its subsidiaries, represents the acquired business of mGage. On July 1, 2021, Kaleyra completed a company reorganization of the acquired business of mGage through the initial dissolution of Vivial Networks LLC, and the following merger of its subsidiary mGage, LLC into the surviving holding company, Vivial Inc., which subsequently changed its name into Kaleyra US Inc., as a result of the reorganization.

The following unaudited pro forma combined financial information for the year ended December 31, 2021 is based on the audited historical consolidated financial statements of Kaleyra for the year ended December 31, 2021 and the unaudited historical condensed consolidated financial information of Vivial Networks for the five months ended May 31, 2021. The following unaudited pro forma combined financial information for the year ended December 31, 2021 should be read in conjunction with: (i) the Current Report on Form 8-K filed with the Securities and Exchange Commission (“SEC”) on June 14, 2021, including the related notes, included within Exhibit 99.1; (ii) the Current Report on Form 8-K/A filed with the SEC on June 21, 2021, including the related notes, included within Exhibit 99.2 and 99.3; (iii) the quarterly report on Form 10-Q for the quarterly period ended June 30, 2021 filed with the SEC on August 9, 2021; (iv) the quarterly report on Form 10-Q for the quarterly period ended September 30, 2021 filed with the SEC on November 9, 2021; and (v) the Annual Report on Form 10-K for the year ended December 31, 2021 filed with the SEC on March 8, 2022. All the above historical financial information has been prepared in conformity with accounting principles generally accepted in the United States of America.

The above historical financial information of Kaleyra and Vivial Networks has been adjusted to give effect to the following transactions, (together, the “Transactions”):

The unaudited Pro Forma Combined Statement of Operations for the year ended December 31, 2021 gives effect to the Transactions as if they had occurred on January 1, 2020.

The unaudited pro forma combined financial information does not necessarily reflect what the combined company’s financial condition or results of operations would have been, had the Merger occurred on the dates indicated. It also may not be useful in predicting the future financial condition and results of operations of the combined company. The actual financial condition and results of operations of the combined company may differ significantly from the pro forma amounts reflected herein due to a variety of factors.

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NOTES TO THE PRO FORMA COMBINED FINANCIAL INFORMATION

(Unaudited)

(in thousands of United States dollars, except for share and per share amounts, unless otherwise noted)

See “Introduction” for more information regarding the basis of presentation for the unaudited pro forma combined financial information.

Vivial’s historical financial information for the five months endend May 31, 2021 has been reclassified in order to conform it with Kalerya’s acounting policies and income statement presentation. Main changes were as follows: (i) reclassification of depreciation and amortization to cost of revenue and general and administrative; (ii) reclassification of selling, general and administrative expense to research and development.

Kaleyra and Vivial have not had any historical relationship prior to the Merger. Accordingly, no pro forma adjustments were required to eliminate activities between the companies.

The unaudited pro forma combined financial information reflects the impact of the following pro forma transaction accounting adjustments.

The amounts in this column include the pro forma adjustments related to the issuance of the Financing with respect to the five months period ended May 31, 2021.

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No pro forma tax benefit has been reflected in connection with the pro forma adjustment to Financial expense, net as Kaleyra is in a net loss tax position and a valuation allowance would be established for the amount of any deferred tax assets.

The amounts in this column include the amortization of Intangible assets, net with respect to the five months period ended May 31, 2021, based on the purchase price allocation values of intangible assets acquired, amortized over the respective estimated useful lives, net of the tax impacts.

Pro forma loss per common share for the year ended December 31, 2021 has been calculated based on the estimated weighted average number of common shares outstanding on a pro forma basis, as described below. The pro forma weighted average number of common shares outstanding has been calculated as if the shares issued in the Transactions had been issued and outstanding on January 1, 2020.

Kaleyra’s unaudited historical condensed consolidated statement of operations for the year ended December 31, 2021 were in a net loss position, thus Kaleyra’s stock awards and outstanding warrants were excluded from the computation of net loss per share because their effect would have been anti-dilutive. There is no adjustment for the dilutive impact of stock awards and outstanding warrants in the pro forma combined financial information due to the combined results being in a net loss position.

The Pro Forma Combined Statement of Operations include $5.5 million of Merger transaction costs incurred in the year ended year ended December 31, 2021.

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