Exhibit 99.3

LogMeIn, Inc.

Unaudited Pro Forma Combined Financial Information

The unaudited pro forma combined balance sheet as of June 30, 2017 reflects pro forma adjustments to the financial position of LogMeIn, Inc. (the “Company”) to give effect to the acquisition of Nanorep Technologies Ltd. (“Nanorep”) as if it had occurred on June 30, 2017. The unaudited pro forma combined statements of operations for the year ended December 31, 2016 and the six months ended June 30, 2017 reflect pro forma adjustments to the results of operations of the Company to give effect to the acquisition of Nanorep as if it had occurred on January 1, 2016. In addition, the unaudited pro forma combined statements of operations for the year ended December 31, 2016 and the six months ended June 30, 2017 give effect to the merger with GetGo, Inc. (“GetGo”) as if the merger had occurred on January 1, 2016 (see Note 1 to the unaudited pro forma combined financial information). We refer herein to the acquisition of Nanorep and the merger with GetGo collectively as the “transactions.”

The unaudited pro forma combined statement of operations for the year ended December 31, 2016 should be read in conjunction with:

The unaudited pro forma combined financial information as of and for the six months ended June 30, 2017 should be read in conjunction with:

The unaudited pro forma combined financial information has been prepared by management for illustrative purposes only and is not necessarily indicative of the consolidated financial position or results of operations that would have been realized had the transactions occurred as of the dates indicated, nor is it meant to be indicative of any future consolidated financial position or future results of operations that the combined company will experience. The historical consolidated financial information has been adjusted in the accompanying unaudited pro forma combined financial statements to give pro forma effect to events that are (1) directly attributable to the transactions, (2) factually supportable and (3) with respect to the unaudited pro forma combined statements of operations, expected to have a continuing impact on the combined results. The pro forma adjustments included in the accompanying unaudited pro forma combined financial statements are based on currently available data and assumptions that the Company believes are reasonable. However, the unaudited pro forma combined statements of operations do not include any expected cost savings or restructuring actions that may be achievable or that may occur subsequent to the transactions or the impact of any non-recurring activity and one-time transaction-related costs incurred prior to the transaction dates.

In the accompanying unaudited pro forma combined financial information, the transactions have been accounted for as business combinations using the acquisition method of accounting under the provisions of Accounting Standard Codification Topic 805, Business Combinations, or ASC 805, and applying the pro forma assumptions and adjustments described in the accompanying notes. Under ASC 805, the Company, as the accounting acquirer, records assets acquired and liabilities assumed in a business combination at their fair values as of the acquisition date. Fair value measurements can be highly subjective and the reasonable application of measurement principles may result in a range of alternative estimates using the same facts and circumstances. Under ASC 805, transaction costs are not included as a component of consideration transferred and are expensed as incurred. The excess of the purchase price (consideration transferred) over the aggregate estimated fair value of identifiable assets and liabilities as of the acquisition date is allocated to goodwill in accordance with ASC 805. The final valuation of assets acquired and liabilities assumed related to the transactions is expected to be completed as soon as practicable but no later than one year after the consummation of the transactions. The allocation of purchase consideration for the transactions reflected in the unaudited pro forma combined financial statements is preliminary and will be adjusted based on the Company’s final valuations of the fair value of the assets acquired and liabilities assumed, which requires extensive use of accounting estimates and management judgment. Although the Company believes the fair values assigned to the assets to be acquired and liabilities to be assumed reflected in the unaudited pro forma combined financial information are based on reasonable estimates and assumptions using currently available data, the results of the final allocation could be materially different from the preliminary allocations, including, but not limited to, the allocations related to components of working capital, identifiable intangible assets, goodwill, property and equipment, deferred revenue and deferred income taxes as well as any resulting impacts to depreciation, amortization and income tax expense.

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LogMeIn, Inc.

Unaudited Pro Forma Combined Balance Sheet

As of June 30, 2017

(In thousands)

See notes to unaudited pro forma combined financial statements.

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LogMeIn, Inc.

Unaudited Pro Forma Combined Statement of Operations

Year Ended December 31, 2016

(In thousands, except per share data)

See notes to unaudited pro forma combined financial statements.

4

LogMeIn, Inc.

Unaudited Pro Forma Combined Statement of Operations

Six Months Ended June 30, 2017

(In thousands, except per share data)

See notes to unaudited pro forma combined financial statements.

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LogMeIn, Inc.

Notes to Unaudited Pro Forma Combined Financial Statements

Note 1—Description of the Business Combinations and Basis of Presentation

Description of the Business Combinations

Acquisition of Nanorep

On July 31, 2017, the Company, through its wholly-owned subsidiary LogMeIn, Kft. (the “Buyer”), acquired all of the outstanding shares of Nanorep, an Israeli company, from the shareholders of Nanorep pursuant to a Stock Purchase Agreement (the “SPA”), dated as of July 31, 2017, by and among the Company, the Buyer, Nanorep, the shareholders of Nanorep (collectively, the “Shareholders”) and Shareholder Representative Services LLC in its capacity as representative of the Shareholders. As a result of the acquisition, Nanorep became a wholly-owned subsidiary of the Buyer.

Pursuant to the terms of the SPA, the Buyer acquired all of the outstanding shares of Nanorep from the Shareholders and all other equity securities of Nanorep were cancelled in exchange for an aggregate purchase price of approximately $45 million, subject to certain adjustments described in the SPA (the “Closing Consideration”). The Buyer funded the Closing Consideration with existing cash on-hand. Additionally, the Company expects to pay up to $5 million in cash in the future to certain former employees of Nanorep contingent upon their continuing service to the Company (in addition to, in some cases, the achievement of specified performance conditions) over the two-year period following the closing of the acquisition.

Merger with the GoTo Business

On January 31, 2017, the Company completed a merger with GetGo, Inc., a wholly-owned subsidiary of Citrix Systems, Inc. (“Citrix), pursuant to which the Company combined with Citrix’s GoTo family of service offerings, known as the “GoTo Business”, in a Reverse Morris Trust transaction (the “Merger”). The GoTo Business has been included in the Company’s historical consolidated financial statements beginning on January 31, 2017, the date of the Merger.

Basis of Presentation

The accompanying unaudited pro forma combined financial information was prepared in accordance with Article 11 of U.S. Securities and Exchange Commission (“SEC”) Regulation S-X. The unaudited pro forma combined statements of operations for the year ended December 31, 2016 and the six months ended June 30, 2017 were prepared using the Company’s historical consolidated financial statements, GetGo’s historical financial statements and Nanorep’s historical financial statements and give effect to the acquisition of Nanorep and the merger with GetGo as if they had occurred on January 1, 2016. The unaudited pro forma combined balance sheet as of June 30, 2017 was prepared using the Company’s historical consolidated financial statements and Nanorep’s historical financial statements and gives effect to the acquisition of Nanorep as if it had occurred on June 30, 2017.

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LogMeIn, Inc.

Notes to Unaudited Pro Forma Combined Financial Statements (continued)

Note 2—Preliminary Purchase Price Allocation for Acquisition of Nanorep

The Company has performed a preliminary valuation analysis of the fair market value of Nanorep’s assets acquired and liabilities assumed. The following table summarizes the allocation of the preliminary purchase price as if the acquisition had occurred on June 30, 2017 (in thousands):

Total purchase consideration includes $41.3 million paid to the Nanorep shareholders and $0.5 million and $2.8 million paid for Nanorep transaction costs and to the Israel Innovation Authority, respectively. This preliminary purchase price allocation has been used to prepare pro forma adjustments in the unaudited pro forma balance sheet and statements of operations. The final purchase price allocation will be determined when the Company has completed the detailed valuations and necessary calculations. The final allocation could differ materially from the preliminary allocation used in the pro forma adjustments. The final allocation may include (1) changes in the allocations to intangible assets, such as completed technology, customer relationships and trademark as well as goodwill; (2) changes in the fair value of deferred tax assets; and (3) other changes to assets and liabilities.

Note 3—Reclassifications

GetGo

Financial information presented in the “Historical GetGo” columns in the unaudited pro forma combined statements of operations have been reclassified to conform to the presentation in the Company’s historical consolidated financial statements, as follows (in thousands):

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LogMeIn, Inc.

Notes to Unaudited Pro Forma Combined Financial Statements (continued)

Note 4—Adjustments to Unaudited Pro Forma Financial Statements for the Acquisition of Nanorep

The pro forma adjustments are based on our preliminary estimates and assumptions that are subject to change. The following adjustments have been reflected in the unaudited pro forma combined financial information:

Amortization of the acquired intangible assets in the acquisition of Nanorep will be recognized using an economic consumption model over the estimated useful life of each respective asset, which represents the period over which the Company expects the related cash flows to be realized. Assuming the acquisition of Nanorep had occurred on January 1, 2016, future annual amortization expense as of December 31, 2016 related to the acquired intangible assets is estimated as follows: $2 million in 2017, $2 million in 2018, $3 million in 2019, $3 million in 2020, $3 million in 2021 and $7 million thereafter.

These preliminary estimates of fair value and estimated useful lives may differ from final amounts the Company will calculate after completing a detailed valuation analysis, and the difference could have a material impact on the accompanying unaudited pro forma combined financial statements. A 10% change in the valuation of intangible assets would cause a corresponding increase or decrease in the balance of goodwill of approximately $2.0 million and annual amortization expense of approximately $0.1 million for the year ended December 31, 2016.

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LogMeIn, Inc.

Notes to Unaudited Pro Forma Combined Financial Statements (continued)

Note 5—Adjustments to Unaudited Pro Forma Financial Statements for the Merger with GetGo

The pro forma adjustments are based on our preliminary estimates and assumptions that are subject to change. The following adjustments have been reflected in the unaudited pro forma combined financial information:

GetGo Merger Pro Forma Adjustments

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LogMeIn, Inc.

Notes to Unaudited Pro Forma Combined Financial Statements (continued)

The completed technology, customer relationships and trademark intangible assets recorded in the Company’s preliminary acquisition accounting of the GetGo Merger are estimated to have fair values of $385 million, $756 million and $65 million, respectively, and are being amortized over their estimated useful lives of 9 years, 8 years and 9 years, respectively. Amortization of the acquired intangible assets in the Merger with GetGo are being recognized using an economic consumption model over the estimated useful life of each respective asset, which represents the period over which the Company expects the related cash flows to be realized. Assuming the Merger had occurred on January 1, 2016, future annual amortization expense as of December 31, 2016 related to the acquired intangible assets is estimated as follows: $219 million in 2017, $207 million in 2018, $179 million in 2019, $145 million in 2020, $111 million in 2021, $84 million in 2022 and $72 million thereafter.

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LogMeIn, Inc.

Notes to Unaudited Pro Forma Combined Financial Statements (continued)

Note 6—Items Not Included in the Unaudited Pro Forma Combined Financial Statements

The unaudited pro forma combined statements of operations do not include any adjustment for non-recurring transaction, transition or integration fees incurred by the Company or GetGo after January 31, 2017 and included in the Company’s historical results for the six months ended June 30, 2017.

The unaudited pro forma combined statements of operations do not include an adjustment of the impacts of any revenue, cost or other operating synergies that may result from the Merger or the acquisition of Nanorep or of any related integration or restructuring costs incurred after the Merger or that may be contemplated.

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