#1A Amplitude Q3 Financial Results Call 2:00 pm PST November 9, 2021 © 2021 Amplitude Inc. All Rights Reserved.#2A 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 fourth quarter of 2021 and full year 2021, 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. 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 it may make. 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 independent 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 independent 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 Margin, non-GAAP Loss From Operations, non- GAAP Sales and Marketing Expenses, non-GAAP Research and Development Expenses, non-GAAP General and Administrative Expenses, 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. © 2021 Amplitude Inc. All rights reserved. 2#3Spenser Skates CEO and Co-Founder A Amplitude#4A Q3 Financial Results Highlights © 2021 Amplitude Inc. All rights reserved. $ $45.5M Revenue increased by 72% Y/Y ✿ 1,417 Customers increased by 54% Y/Y ED 121% Dollar-based net retention rate (across paying customers)#5A Great Products are Built with Amplitude Understand customer behavior in a new way instacart Instacart informs product strategy to help make online shopping ortles Measure and optimize the value of your business intuit. Intuit analyzes upticks and drop-offs in product usage and customer retention in minutes. © 2021 Amplitude Inc. All Rights Reserved. Predict which actions lead to business outcomes Walmart Walmart predicts when product growth spikes will happen and how key events play long-term retention to plan retention strategy and timing. Adapt each experience to maximize impact BEES, an e-commerce and SaaS company created by Anhesuer-Busch Inbev, prompts customers with recommended orders based on purchase history and market insight. 5#6A Amplitude Powers Product Led Growth salesforce © 2021 Amplitude Inc. All rights reserved. Sales A Adobe Marketing A Amplitude Product 6#7A © 2021 Amplitude Inc. All rights reserved. Digital Optimization System .lı Amplitude Analytics Amplitude Recommend Data Management Amplitude Experiment Amplitude Behavioral Graph DIGITAL CHANNELS | DIGITAL PRODUCTS | DIGITAL DATA WAREHOUSES 7#8A Amplitude Digital Optimization System Powers Building Better Products 444 Purpose built database © 2021 Amplitude Inc. All rights reserved. What is the LTV of subscribers vs. on-de.. Subscribers 3X higher What is my trial to subscription conversion? <10% trial starters subscribed Where are users dropping off before subscription? <10% completed the trial Actionable Insights Collaboration Integration | Self-Service Amplitude Analytics Continuous Optimization #1 Ranked Product Analytics Solution for the 5th Time (G2.com) Amplitude Recommend Amplitude Experiment 8#9A New Snowflake Partnership + Product Integration Amplitude + snowflake © 2021 Amplitude Inc. All rights reserved.#10A © 2021 Amplitude Inc. All rights reserved. Q3 2021 Notable Customer Wins oji CARVANA New Win, Adobe Replacement GLOBAL 100 automobile company New Win, EMEA Glovo TripActions OfferUp macmillan learning NAUTILUS 10#11A Q3 2021 Customer Highlights © 2021 Amplitude Inc. All rights reserved. Expansion + Recommend □ Square Expansion + Experiment S SmartRecruiters Volume-based Upsell spirit 11#12A Q3 Amplitude News Amplitude Launches New Data Centre in Germany to Support Customer Growth in EU © 2021 Amplitude Inc. All rights reserved. Inaugural Product Report Launch AMPLITUDE LASS The Product Report 2021#13Hoang Vuong CFO A Amplitude#14A Strong Revenue and Customer Metrics Revenue Total Paying Customers Dollar-Based Net Retention Rate (NRR) © 2021 Amplitude Inc. All rights reserved. Q3 2021 Result $45.5M +72% Y/Y 1,417 +54% Y/Y 121% 14#15A Q3 2021 Revenue Geographic Mix © 2021 Amplitude Inc. All rights reserved. US Revenue $29.6M +75% Y/Y 65% of Total Revenue International Revenue $15.9M +68% Y/Y 35% of Total Revenue 15#16A Q3 2021 Remaining Performance Obligations (RPO) © 2021 Amplitude Inc. All rights reserved. RPO $152.0M +79% Y/Y Current RPO $125.9M +66% Y/Y 83% of RPO 16#17A Non-GAAP Financial Results* Gross Margin Operating Margin Net Loss Per Share Free Cash Flow Margin Cash and Cash Equivalents (GAAP) Q3 2021 Result 71.3% (5%) $(0.05) 39.3 million shares * 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 © 2021 Amplitude Inc. All rights reserved. (35%) $317.8M 17#18A Guidance (As of November 9, 2021) Revenue Non-GAAP Loss from Operations Non-GAAP Net Loss Per Share Weighted Average Shares Outstanding © 2021 Amplitude Inc. All rights reserved. Q4 2021 $46 - $47M +53% to +56% Y/Y $(9.2M) - $(8.2M) $(0.08) - $(0.07) 108.5M shares FY 2021 $163.8 $164.8M +60% to 61% Y/Y $(18.5) - $(17.5M) $(0.37) - $(0.35) 51.5M shares ¹ A reconciliation to GAAP loss from operations and GAAP net loss per share has not been provided as the quantification of certain items included in the calculation of GAAP loss from operations 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. 18#19Sellside Analyst Q&A#20GAAP-to-Non-GAAP Reconciliation#21A 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 © 2021 Amplitude Inc. All rights reserved. GAAP gross margin Non-GAAP adjustments Non-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 Plus: direct listing expenses 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 Plus: direct listing expenses 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 September 30, 2021 2020 31,491 426 500 32,417 69.3% 2.0% 71.3% (36,768) 17,931 500 16,052 (2,285) (80.8%) 75.8% (5.0%) (36,559) 17,931 (0.93) 0.88 (0.05) $ 500 16,052 (2,076) $ 39,301 $ $ $ 18,601 167 18,768 70.5% 0.6% 71.2% (2,385) 1,463 227 (695) (9.0%) 6.4% (2.6%) (2,574) 1,463 227 (884) (0.10) 0.07 (0.03) 25,147 ¹ Stock-based compensation expense-related charges include employer payroll tax-related expenses on employee stock transactions. 2 Margin represents percentage of GAAP revenue 21#22A GAAP to Non-GAAP Reconciliation Reconciliation of operating expenses GAAP research and development Less: stock-based compensation expense and related employer payroll taxes 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 Less: stock-based compensation expense and related employer payroll taxes Less: direct listing expenses 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 Less: direct listing expenses 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 © 2021 Amplitude Inc. All rights reserved. $ S $ Three Months Ended September 30, 2021 2020 18,493 $ (9,894) 8,599 40.7% 18.9% 22,199 (2,835) 19,364 48.8% 42.6% 27,567 (4,776) (16,052) 6,739 60.6% 14.8% $ $ $ S $ 5,586 (522) (227) 4,837 21.2% 18.3% 11,482 (509) 10,973 43.5% 41.6% 3,918 (265) 3,653 14.9% 13.9% ¹ Stock-based compensation expense-related charges include employer payroll tax-related expenses on employee stock transactions. 22#23A GAAP Cash Flows from Operations to Free Cash Flow Net cash provided by (used in) operating activities Less: Purchases of property and equipment Capitalization of internal-use software costs Free cash flow Net cash provided by (used in) operating activities margin Non-GAAP adjustments Free cash flow margin Note: Certain figures may not sum due to rounding © 2021 Amplitude Inc. All rights reserved. Three Months Ended September 30, 2021 2020 (15,086) (302) (394) (15,782) (33.2%) (1.5%) (34.7%) $ 2,541 (216) (457) 1,868 9.6% (2.6%) 7.1% ¹ Margin represents percentage of GAAP revenue 23#24A Amplitude © 2021 Amplitude Inc. All Rights Reserved.