#1A Amplitude Q1 2023 Financial Results Call 2:00 pm PST May 9, 2023#28 Yaoxian Chew Investor Relations A Amplitude © 2023 Amplitude Inc. All Rights Reserved. 2#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 second 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 year ended March 31, 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 Loss, and non-GAAP Net 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#48 Spenser Skates CEO and Co-Founder A Amplitude © 2023 Amplitude Inc. All Rights Reserved. 4#52 $ Q1 Financial Results Highlights $66.5M Revenue increased by 25% Y/Y : 2,175 Paying customers increased by 28% Y/Y 106%/114% Dollar-based net retention rate / Trailing 12M Dollar-based net retention rate (across paying customers) as of March 31, 2023 © 2023 Amplitude Inc. All Rights Reserved. 5#6A Q1 2023 Notable Customer Wins + Expansions o GOLFERS NAL G d ASSOCIATI 1916 AMERICA viator sor® Company WINS CHINES PANDA XPRESS KITCHEN rudderstack ENDEAVOR EXPANSIONS Cruck felst Chess.com AMC NETWORKS © 2023 Amplitude Inc. All Rights Reserved. 6#7(8 Q1 2023 Customer Highlights PANDA EXPRESS CHINESE KITCHEN rudderstack © 2023 Amplitude Inc. All Rights Reserved. 7#8T7 Product Update#98 Spenser Skates CEO and Co-Founder A Amplitude © 2023 Amplitude Inc. All Rights Reserved. 9#10+7 INTRODUCING Amplitude's new Chief Revenue Officer Nate Crook Chief Revenue Officer © 2023 Amplitude Inc. All Rights Reserved. 10#118 Spenser Skates CEO and Co-Founder A Amplitude © 2023 Amplitude Inc. All Rights Reserved. 11#128 Criss Harms CFO A Amplitude © 2023 Amplitude Inc. All Rights Reserved. 12#13Strong Revenue and Customer Metrics Revenue Annual Recurring Revenue (ARR) Total Paying Customers TTM Dollar-Based Net Retention Rate as of March 31, 2023 Dollar-Based Net Retention Rate as of March 31, 2023 Q1 2023 Result $66.5M +25% Y/Y $262M +25% Y/Y 2,175 +28% Y/Y 114% 106% © 2023 Amplitude Inc. All Rights Reserved. 13#14(8 Q1 2023 Remaining Performance Obligations (RPO) RPO $240M +24% Y/Y Current RPO $192M +28% Y/Y 80% of RPO © 2023 Amplitude Inc. All Rights Reserved. 14#15(8 Non-GAAP Financial Results* Gross Margin Operating Margin Net Loss Per Share Free Cash Flow Margin Cash, Cash Equivalents and Marketable Securities (GAAP) Q1 2023 Result 75% (12%) $(0.04) 114.4 million shares (9%) $298M * Unless otherwise noted, all metrics are Non-GAAP. Gross margin, operating margin and free cash flow margin are calculated as gross margin, operating margin 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. 15#16(2 Revenue Non-GAAP Operating Margin Non-GAAP Net Income Per Share Guidance Weighted Average Shares Outstanding Q2 2023 $66.5$67.2M +14% to +16% Y/Y $(1.1) - $(0.6)M $0.01 - $0.02 116.5M shares FY 2023 $266 $269M +12% to +13% Y/Y $(8.4) - $(6.0)M $0.02 $0.04 117.5M shares An outlook for GAAP loss from operations, GAAP operating margin, GAAP net income, and GAAP net income per share, and a reconciliation to GAAP loss from operations, GAAP operating margin, GAAP net income, and GAAP net loss per share has not been provided as the quantification of certain items included in the calculation of GAAP income 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. 16#178 Criss Harms CFO A Amplitude © 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 Reconciliation of gross profit and gross margin GAAP gross profit Plus: stock-based compensation expense and related employer payroll taxes Plus: amortization of acquired intangible assets Non-GAAP gross profit GAAP gross margin Non-GAAP adjustments Nan-GAAP gross margin Reconciliation of operating loss and operating margin GAAP loss from operations Plus: stock-based compensation expense and related employer payroll taxes Plus: amortization of acquired intangible assets Non-GAAP loss from operations GAAP operating margin Non-GAAP adjustments Non-GAAP operating margin Reconciliation of net loss GAAP net loss Plus: stock-based compensation expense and related employer payroll taxes Plus: amortization of acquired intangible assets Non-GAAP net loss Reconciliation of net loss per share GAAP net loss per share, basic and diluted Non-GAAP adjustments to net loss Non-GAAP net loss per share, basic and diluted Weighted average shares used in GAAP and non-GAAP per share calculation, basic and diluted Note: Certain figures may not sum due to rounding $ $ $ $ $ Three Months Ended March 31, 2023 2022 47,290 $ 1.792 422 49,504 $ 71.1% 3.3% 74.5% (29,173) 20,854 422 (7,897) (43.9%) 32.0% (11.9%) (26,315) 20,854 422 (5,039) $ 37,002 922 489 38,413 (0.23) $ 0.19 (0.04) 114,369 69.7% 2.7% 72.4% (21,991) 13,776 1111 489 (7,726) (41.4%) 26.9% (14.6%) (22,220) 13,776 489 (7,955) (0.20) 0.13 (0.07) 109,553 ¹Stock-based compensation expense-related charges include employer payroll tax-related expenses on employee stock transaction 2 Margin represents percentage of GAAP revenue © 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 taxes 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 Less: stock-based compensation expense and related employer payroll taxes 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 taxes 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 March 31, 2023 2022 23,708 (9,033) 14,675 35.7% 22.1% 39,133 $ (6,681) 32,452 58.9% 48.8% 13,622 (3,348) 10.274 20.5% 15.5% $ S S 16,501 (4,482) 12.019 31.1% 22.6% 28,130 (3,233) 24,897 53.0% 46.9% 14,362 (5,140) 9,222 27.1% 17.4% 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 used in operating activities Less: Purchases of property and equipment Capitalization of internal-use software costs Free cash flow Net cash used in operating activities margin Non-GAAP adjustments Free cash flow margin¹ Note: Certain figures may not sum due to rounding $ Three Months Ended March 31, 2023 2022 (5,061) (329) (448) (5,838) (7.6%) (1.2%) (8.8%) $ (8,289) (713) (594) (9,596) (15.6%) (2.5%) (18.1%) ¹ Margin represents percentage of GAAP revenue © 2023 Amplitude Inc. All Rights Reserved. 22