#1A Amplitude Q2 2023 Earnings Call 2:00 pm PST August 8, 2023#2+7 Yaoxian Chew Investor Relations | Amplitude © 2023 Amplitude Inc. Confidential. All Rights Reserved.#3(8 Disclaimer This presentation and the accompanying oral presentation have been prepared by Amplitude, Inc. (the "Company"). Certain statements in this presentation and the accompanying oral commentary are forward-looking statements. These statements relate to the Company's financial outlook for the third quarter of 2023 and full year 2023, the expected performance of the Company's products, the Company's expected quarterly and long-term growth, investments, and overall future prospects, as well as its business strategy and plans and objectives for future operations, and are subject to a number of known and unknown risks, uncertainties, and other factors that may cause the actual results, levels of activity, performance, or achievements of the Company or its industry to be materially different from those expressed or implied by any forward-looking statements. In some cases, forward-looking statements can be identified by words such as "may," "should," "could," "predict," "potential," "believe," "expect," "continue," "will," "anticipate," "seek," "estimate," "intend," "plan," "projection," "would," and "outlook," or the negative version of those words or phrases or other comparable words or phrases of a future- or forward-looking nature. These forward-looking statements are not statements of historical fact, and are based on current expectations, estimates, and projections about the Company's industry as well as certain assumptions made by management, many of which, by their nature, are inherently uncertain and beyond the Company's control. While the Company believes that these expectations, assumptions, estimates, and projections are reasonable, such forward-looking statements are only predictions and involve known and unknown risk and uncertainties, and so you are cautioned not to give undue weight to such forward-looking statements. These risks and uncertainties include, but are not limited to, those set forth herein as well as in the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2023 being filed at or around the date hereof, and other risks and uncertainties listed from time to time in the Company's other filings with the U.S. Securities and Exchange Commission. Moreover, the Company operates in a competitive, new, and rapidly changing market, and new risks may emerge from time to time. It is not possible for the Company to predict all risks, nor can it assess the impact of all factors on its business or the extent to which any factor, or combination of factors may cause actual results or outcomes to differ materially from those contained in any forward-looking statements. The forward-looking statements in this presentation are made only as of the date hereof. Except to the extent required by law, the Company assumes no obligation and does not intend to update any of these forward-looking statements after the date of this presentation or to conform these statements to actual results or revised expectations. This presentation also contains estimates and other statistical data made by third parties and by the Company relating to market size and growth and other data about the Company's industry. These estimates and other statistical data involve a number of assumptions and limitations, and you are cautioned not to give undue weight to such estimates and other statistical data. The Company has not independently verified the statistical and other industry data generated by third parties and contained in this presentation and, accordingly, it cannot guarantee their accuracy or completeness. In addition, expectations, assumptions, estimates and projections of the Company's future performance and the future performance of the markets in which the Company operates are necessarily subject to a high degree of uncertainty and risk. This presentation also includes certain non-GAAP financial measures (including on a forward-looking basis) such as Free Cash Flow, Free Cash Flow Margin, non-GAAP Gross Profit, non-GAAP Gross Margin, non-GAAP Loss from Operations, non-GAAP Operating Margin, non-GAAP Sales and Marketing Expenses, non-GAAP Research and Development Expenses, non-GAAP General and Administrative Expenses, non-GAAP Net Income (Loss), and non-GAAP Net Income (Loss) Per Share. These non-GAAP financial measures are in addition to, and not as a substitute for or superior to, measures of financial performance prepared in accordance with GAAP. There are a number of limitations related to the use of these non-GAAP financial measures versus their nearest GAAP equivalents. For example, other companies may calculate non-GAAP financial measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of the Company's non-GAAP financial measures as tools for comparison. The Company has provided a reconciliation of those historic measures to the most directly comparable GAAP measures, which is available in the appendix to this presentation. All third-party brand names and logos appearing in this presentation are trademarks or registered trademarks of their respective holders. Any such appearance does not necessarily imply any endorsement of the Company. © 2023 Amplitude Inc. All Rights Reserved. 3#4+7 Spenser Skates CEO & Co-founder | Amplitude © 2023 Amplitude Inc. Confidential. All Rights Reserved.#52 $ Q2 Financial Results Highlights $67.8M Revenue by 17% Y/Y increased : 2,344 Paying customers increased by 28% Y/Y BU $20.4M / $19.3M Cash Flow from Operations / Free Cash Flow © 2023 Amplitude Inc. All Rights Reserved. 5#6WIN SIMPLE WIN TOGETHER WIN ENTERPRISE WIN CATEGORY#7T7 Product Updates#8T7 Warehouse Native Amplitude A +#9T7 Amplitude Al#10Q2 2023 Notable Customer Wins + Expansions Careem 1 Western Union BODi BY BEACHBODY alteryx carta CLOUDFLAREⓇ TaxJar a stripe company © 2023 Amplitude Inc. All Rights Reserved. 10#11(8 Q2 2023 Customer Highlights GLOBAL SPORTS ORGANIZATION spin by OXXO © 2023 Amplitude Inc. All Rights Reserved. 11#12+7 Spenser Skates CEO & Co-founder | Amplitude © 2023 Amplitude Inc. Confidential. All Rights Reserved.#13+7 Criss Harms CFO | Amplitude © 2023 Amplitude Inc. Confidential. All Rights Reserved.#14Strong Revenue and Customer Metrics Revenue Annual Recurring Revenue (ARR) Total Paying Customers TTM Dollar-Based Net Retention Rate as of June 30, 2023 Dollar-Based Net Retention Rate as of June 30, 2023 Q2 2023 Result $67.8M +17% Y/Y $268M +18% Y/Y 2,344 +28% Y/Y 108% 101% © 2023 Amplitude Inc. All Rights Reserved. 14#15(8 Q2 2023 Remaining Performance Obligations (RPO) RPO $246M +8% Y/Y Current RPO $192M +13% Y/Y 78% of RPO © 2023 Amplitude Inc. All Rights Reserved. 15#16(8 Non-GAAP Financial Results* Gross Margin Operating Margin Net Income Per Share, Diluted Free Cash Flow Margin Cash, Cash Equivalents and Marketable Securities (GAAP) Q2 2023 Result 77.5% (1%) $0.02 126.3 million diluted shares 29% $319M * Unless otherwise noted, all metrics are Non-GAAP. Gross margin, operating margin and free cash flow margin are calculated as gross profit, loss from operations, and free cash flow, respectively, divided by total revenue. A reconciliation of GAAP to Non-GAAP results is available in the appendix of this presentation. © 2023 Amplitude Inc. All Rights Reserved. 16#17(8 A Revenue Guidance Non-GAAP Operating Income (Loss) Non-GAAP Net Income Per Share, Diluted Weighted Average Shares Outstanding, Diluted Q3 2023 $69.7 $70.3M +13% to +14% Y/Y $0.6 - $1.0M $0.02 $0.03 128.3M shares FY 2023 $273.6- $275.6M +15% to +16% Y/Y $(7.6) - $(5.2)M $0.02 $0.04 127.6M shares An outlook for GAAP income (loss) from operations, GAAP operating margin, GAAP net income (loss), and GAAP net income (loss) per share, and a reconciliation to GAAP loss from operations, GAAP operating margin, GAAP net income (loss), and GAAP net income (loss) per share has not been provided as the quantification of certain items included in the calculation of GAAP income (loss) from operations, GAAP operating margin, and GAAP net loss per share cannot be reasonably calculated or predicted at this time without unreasonable efforts. For example, the non-GAAP adjustment for stock-based compensation expense requires additional inputs such as the number and value of awards granted that are not currently ascertainable, and the non-GAAP adjustment for amortization of acquired intangible assets depends on the timing and value of intangible assets acquired that cannot be accurately forecasted. © 2023 Amplitude Inc. All Rights Reserved. 17#18T7 Sell-Side Analyst Q&A © 2023 Amplitude Inc. All Rights Reserved. 18#19T7 GAAP to Non-GAAP Reconciliation © 2023 Amplitude Inc. All Rights Reserved. 19#20(8 GAAP to Non-GAAP Reconciliation AMPLITUDE, INC. Reconciliation of GAAP to Non-GAAP Data (In thousands, except percentages and per share amounts) (unaudited) Reconciliation of gross profit and gross margin GAAP gross profit Plus: stock-based compensation expense and related employer payroll taxes¹ Plus: amortization of acquired intangible assets Non-GAAP gross profit GAAP gross margin² Non-GAAP adjustments Non-GAAP gross margin² Reconciliation of operating loss and operating margin GAAP loss from operations Plus: stock-based compensation expense and related employer payroll taxes¹ Plus: amortization of acquired intangible assets Plus: restructuring and other related charges Non-GAAP loss from operations GAAP operating margin Non-GAAP adjustments Non-GAAP operating margin Reconciliation of net income (loss) GAAP net income (loss) Plus: stock-based compensation expense and related employer payroll taxes¹ Plus: amortization of acquired intangible assets Plus: restructuring and other related charges Non-GAAP net income (loss) Reconciliation of net income (loss) per share GAAP net income (loss) per share, basic Non-GAAP adjustments to net income (loss) Non-GAAP net income (loss) per share, basic Non-GAAP net income (loss) per share, diluted Weighted-average shares used in GAAP and non-GAAP per share calculation, basic Weighted-average shares used in GAAP and non-GAAP per share calculation, diluted³ Note: Certain figures may not sum due to rounding $ $ $ $ $ $ $ $ Three Months Ended June 30, 2023 2022 50,587 1,687 270 52,544 74.6% 2.9% 77.5% (30,887) 21,579 (27,758) 21,579 314 8,194 $ $ 314 8,194 (800) $ (45.6%) 44.4% (1.2%) (0.24) 0.26 0.02 0.02 116,174 126,270 $ $ 2,329 $ $ S 41,070 1,669 494 43,233 70.7% 3.7% 74.4% (24,583) 15,090 494 (8,999) (42.3%) 26.8% (15.5%) (24,568) 15,090 494 (8,984) (0.22) 0.14 (0.08) (0.08) 111,036 111,036 $ $ $ $ $ $ $ $ $ Six Months Ended June 30, 2023 2022 97,877 $ 3,479 692 102,048 72.9% 3.1% 76.0% (60,060) 42,433 (54,073) 42,433 779 8,194 (8,654) $ (44.7%) 38.3% (6.4%) 779 8,194 (2,667) $ $ 115,277 115,277 $ $ (0.47) 0.45 (0.02) $ (0.02) $ $ 78,072 2,591 983 81,646 70.2% 3.2% 73.4% (46,574) 28,866 983 (16,725) (41.9%) 26.8% (15.0%) (46,788) 28,866 983 (16,939) (0.42) 0.27 (0.15) (0.15) 110,297 110,297 1 Stock-based compensation expense-related charges include employer payroll tax-related expenses on employee stock transaction 2 Margin represents percentage of GAAP revenue 3 For the three months ended June 30, 2023, the weighted average shares used in the GAAP per share calculation excludes 10.1 million shares, as the effect is anti-dilutive in the period. © 2023 Amplitude Inc. All Rights Reserved. 20#21(8 GAAP to Non-GAAP Reconciliation Reconciliation of operating expenses GAAP research and development Less: stock-based compensation expense and related employer payroll taxes¹ Less: amortization of acquired intangible assets Non-GAAP research and development GAAP research and development as percentage of revenue Non-GAAP research and development as percentage of revenue GAAP sales and marketing AMPLITUDE, INC. Reconciliation of GAAP to Non-GAAP Data (In thousands, except percentages and per share amounts) (unaudited) Less: stock-based compensation expense and related employer payroll taxes¹ Less: amortization of acquired intangible assets Non-GAAP sales and marketing GAAP sales and marketing as percentage of revenue Non-GAAP sales and marketing as percentage of revenue GAAP general and administrative Less: stock-based compensation expense and related employer payroll taxes¹ Non-GAAP general and administrative GAAP general and administrative as percentage of revenue Non-GAAP general and administrative as percentage of revenue Note: Certain figures may not sum due to rounding $ $ $ $ $ $ Three Months Ended June 30, 2023 2022 22,435 (9,500) 12,935 33.1% 19.1% 38,326 (7,660) (44) 30,622 56.6% 45.2% 12,519 (2,732) 9,787 18.5% 14.4% $ $ $ $ 20,306 (7,533) 12,773 34.9% 22.0% 34,135 (3,268) 30,867 58.7% 53.1% 11,212 (2,620) 8,592 19.3% 14.8% $ S $ S $ Six Months Ended June 30, 2023 2022 46,143 (18,533) $ 27,610 $ 34.4% 20.6% 77,459 (14,341) (87) 63,031 S 57.7% 47.0% 26,141 (6,080) 20,061 19.5% 14.9% S $ $ 36,807 (12,015) 24,792 33.1% 22.3% 62,265 (6,500) 55,765 56.0% 50.2% 25,574 (7,760) 17,814 23.0% 16.0% 1 Stock-based compensation expense-related charges include employer payroll tax-related expenses on employee stock transaction © 2023 Amplitude Inc. All Rights Reserved. 21#22(8 GAAP Cash Flows from Operating Activities to Free Cash Flow Net cash provided by operating activities Less: Purchases of property and equipment Capitalization of internal-use software costs Free cash flow Net cash provided by operating activities margin Non-GAAP adjustments AMPLITUDE, INC. Reconciliation of GAAP Cash Flows from Operations to Free Cash Flows (In thousands, except for percentages) (unaudited) Free cash flow margin¹ Note: Certain figures may not sum due to rounding $ Three Months Ended June 30, 2023 2022 20,406 (666) (425) 19,315 30.1% (1.6%) 28.5% $ 10,642 (1,812) (669) 8,161 18.3% (4.3%) 14.0% $ $ Six Months Ended June 30, 2023 2022 15,345 (995) (873) 13,477 11.4% (1.4%) 10.0% $ 2,353 (2,525) (1,263) (1,435) 2.1% (3.4%) (1.3%) ¹ Margin represents percentage of GAAP revenue © 2023 Amplitude Inc. All Rights Reserved. 22