diff --git a/src/components/gui/gui.jsx b/src/components/gui/gui.jsx
index 3eef5b1a3..14b7c7805 100644
--- a/src/components/gui/gui.jsx
+++ b/src/components/gui/gui.jsx
@@ -31,6 +31,7 @@ import Cards from '../../containers/cards.jsx';
 import Alerts from '../../containers/alerts.jsx';
 import DragLayer from '../../containers/drag-layer.jsx';
 import ConnectionModal from '../../containers/connection-modal.jsx';
+import TelemetryModal from '../telemetry-modal/telemetry-modal.jsx';
 
 import layout, {STAGE_SIZE_MODES} from '../../lib/layout-constants';
 import {resolveStageSize} from '../../lib/screen-utils';
@@ -100,6 +101,7 @@ const GUIComponent = props => {
         onExtensionButtonClick,
         onRequestCloseBackdropLibrary,
         onRequestCloseCostumeLibrary,
+        onRequestCloseTelemetryModal,
         onSeeCommunity,
         onShare,
         previewInfoVisible,
@@ -107,6 +109,8 @@ const GUIComponent = props => {
         soundsTabVisible,
         stageSizeMode,
         targetIsStage,
+        telemetryModalHandlers,
+        telemetryModalVisible,
         tipsLibraryVisible,
         vm,
         ...componentProps
@@ -151,6 +155,12 @@ const GUIComponent = props => {
                 {previewInfoVisible ? (
                     <PreviewModal />
                 ) : null}
+                {telemetryModalVisible ? (
+                    <TelemetryModal
+                        {...telemetryModalHandlers}
+                        onRequestClose={onRequestCloseTelemetryModal}
+                    />
+                ) : null}
                 {loading ? (
                     <Loader />
                 ) : null}
@@ -379,6 +389,7 @@ GUIComponent.propTypes = {
     onOpenRegistration: PropTypes.func,
     onRequestCloseBackdropLibrary: PropTypes.func,
     onRequestCloseCostumeLibrary: PropTypes.func,
+    onRequestCloseTelemetryModal: PropTypes.func,
     onSeeCommunity: PropTypes.func,
     onShare: PropTypes.func,
     onTabSelect: PropTypes.func,
@@ -390,6 +401,12 @@ GUIComponent.propTypes = {
     soundsTabVisible: PropTypes.bool,
     stageSizeMode: PropTypes.oneOf(Object.keys(STAGE_SIZE_MODES)),
     targetIsStage: PropTypes.bool,
+    telemetryModalHandlers: PropTypes.shape({
+        onCancel: PropTypes.func,
+        onOptIn: PropTypes.func.isRequired,
+        onOptOut: PropTypes.func.isRequired
+    }),
+    telemetryModalVisible: PropTypes.bool,
     tipsLibraryVisible: PropTypes.bool,
     vm: PropTypes.instanceOf(VM).isRequired
 };
diff --git a/src/components/telemetry-modal/telemetry-modal-header.png b/src/components/telemetry-modal/telemetry-modal-header.png
new file mode 100644
index 000000000..b297b108e
Binary files /dev/null and b/src/components/telemetry-modal/telemetry-modal-header.png differ
diff --git a/src/components/telemetry-modal/telemetry-modal.css b/src/components/telemetry-modal/telemetry-modal.css
new file mode 100644
index 000000000..18b8d1ed8
--- /dev/null
+++ b/src/components/telemetry-modal/telemetry-modal.css
@@ -0,0 +1,82 @@
+@import "../../css/colors.css";
+@import "../../css/units.css";
+@import "../../css/typography.css";
+@import "../../css/z-index.css";
+
+.modal-overlay {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    z-index: $z-index-modal;
+    background-color: $ui-modal-overlay;
+}
+
+.modal-content {
+    margin: 100px auto;
+    outline: none;
+    border: .25rem solid $ui-white-transparent;
+    padding: 0;
+    border-radius: $space;
+    user-select: none;
+    width: 640px;
+
+    color: $text-primary;
+    overflow: hidden;
+}
+
+.illustration {
+    width: 100%;
+    height: 128px;
+    background-color: $motion-primary;
+    background-image: url('./telemetry-modal-header.png');
+    background-size: cover;
+}
+
+.body {
+    background: $ui-white;
+    padding: 1.5rem 2.25rem;
+    text-align: left;
+}
+
+.privacy-policy-link {
+    color: $motion-primary;
+    text-decoration: none;
+}
+
+/* Confirmation buttons at the bottom of the modal */
+.button-row {
+    margin: 1.5rem 0;
+    font-weight: bolder;
+    text-align: right;
+    display: flex;
+    justify-content: center;
+}
+
+.button-row button {
+    border: 1px solid $motion-primary;
+    border-radius: 0.25rem;
+    padding: 0.5rem 1.5rem;
+    background: white;
+    font-weight: bold;
+    font-size: .875rem;
+    cursor: pointer;
+}
+
+.button-row button.opt-in {
+    background: $motion-primary;
+    color: white;
+}
+
+.button-row button.opt-out {
+    color: $motion-primary;
+}
+
+[dir="ltr"] .button-row button + button {
+    margin-left: 0.5rem;
+}
+
+[dir="rtl"] .button-row button + button {
+    margin-right: 0.5rem;
+}
diff --git a/src/components/telemetry-modal/telemetry-modal.jsx b/src/components/telemetry-modal/telemetry-modal.jsx
new file mode 100644
index 000000000..b9e805aaf
--- /dev/null
+++ b/src/components/telemetry-modal/telemetry-modal.jsx
@@ -0,0 +1,136 @@
+import bindAll from 'lodash.bindall';
+import PropTypes from 'prop-types';
+import React from 'react';
+import {defineMessages, injectIntl, intlShape, FormattedMessage} from 'react-intl';
+import ReactModal from 'react-modal';
+
+import Box from '../box/box.jsx';
+
+import styles from './telemetry-modal.css';
+
+const messages = defineMessages({
+    label: {
+        id: 'gui.telemetryOptIn.label',
+        defaultMessage: 'Report statistics to improve Scratch',
+        description: 'Scratch 3.0 telemetry modal label - for accessibility'
+    },
+    bodyText1: {
+        defaultMessage: 'The Scratch Team is always looking to better understand how Scratch is used around the ' +
+            'world. To help support this effort, you can allow Scratch to automatically send usage information to ' +
+            'the Scratch Team.',
+        description: 'First paragraph of body text for telemetry opt-in modal',
+        id: 'gui.telemetryOptIn.body1'
+    },
+    bodyText2: {
+        defaultMessage: 'The information we collect includes language selection, blocks usage, and some events like ' +
+            'saving, loading, and uploading a project. We DO NOT collect any personal information. Please see our ' +
+            '{privacyPolicyLink} for more information.',
+        description: 'First paragraph of body text for telemetry opt-in modal',
+        id: 'gui.telemetryOptIn.body2'
+    },
+    privacyPolicyLink: {
+        defaultMessage: 'Privacy Policy',
+        description: 'Link to the Scratch privacy policy',
+        id: 'gui.telemetryOptIn.privacyPolicyLink'
+    },
+    noButton: {
+        defaultMessage: 'No, thanks',
+        description: 'Text for telemetry modal opt-out button',
+        id: 'gui.telemetryOptIn.buttonTextNo'
+    },
+    noTooltip: {
+        defaultMessage: 'Disable telemetry',
+        description: 'Tooltip for telemetry modal opt-out button',
+        id: 'gui.telemetryOptIn.buttonTooltipNo'
+    },
+    yesButton: {
+        defaultMessage: "Yes, I'd like to help improve Scratch",
+        description: 'Text for telemetry modal opt-in button',
+        id: 'gui.telemetryOptIn.buttonTextYes'
+    },
+    yesTooltip: {
+        defaultMessage: 'Enable telemetry',
+        description: 'Tooltip for telemetry modal opt-in button',
+        id: 'gui.telemetryOptIn.buttonTooltipYes'
+    }
+});
+
+class TelemetryModal extends React.PureComponent {
+    constructor (props) {
+        super(props);
+        bindAll(this, [
+            'handleCancel',
+            'handleOptIn',
+            'handleOptOut'
+        ]);
+    }
+    handleCancel () {
+        this.props.onRequestClose();
+        if (this.props.onCancel) {
+            this.props.onCancel();
+        }
+    }
+    handleOptIn () {
+        this.props.onRequestClose();
+        this.props.onOptIn();
+    }
+    handleOptOut () {
+        this.props.onRequestClose();
+        this.props.onOptOut();
+    }
+    render () {
+        return (<ReactModal
+            isOpen
+            className={styles.modalContent}
+            contentLabel={this.props.intl.formatMessage(messages.label)}
+            overlayClassName={styles.modalOverlay}
+            onRequestClose={this.handleCancel}
+        >
+            <div dir={this.props.isRtl ? 'rtl' : 'ltr'} >
+                <Box className={styles.illustration} />
+
+                <Box className={styles.body}>
+                    <p><FormattedMessage {...messages.bodyText1} /></p>
+                    <p><FormattedMessage
+                        {...messages.bodyText2}
+                        values={{
+                            privacyPolicyLink: (<a
+                                className={styles.privacyPolicyLink}
+                                href="https://scratch.mit.edu/privacy_policy/"
+                            >
+                                <FormattedMessage {...messages.privacyPolicyLink} />
+                            </a>)
+                        }}
+                    /></p>
+                    <Box className={styles.buttonRow}>
+                        <button
+                            className={styles.optOut}
+                            title={this.props.intl.formatMessage(messages.noTooltip)}
+                            onClick={this.handleOptOut}
+                        >
+                            <FormattedMessage {...messages.noButton} />
+                        </button>
+                        <button
+                            className={styles.optIn}
+                            title={this.props.intl.formatMessage(messages.yesTooltip)}
+                            onClick={this.handleOptIn}
+                        >
+                            <FormattedMessage {...messages.yesButton} />
+                        </button>
+                    </Box>
+                </Box>
+            </div>
+        </ReactModal>);
+    }
+}
+
+TelemetryModal.propTypes = {
+    intl: intlShape.isRequired,
+    isRtl: PropTypes.bool,
+    onCancel: PropTypes.func,
+    onOptIn: PropTypes.func.isRequired,
+    onOptOut: PropTypes.func.isRequired,
+    onRequestClose: PropTypes.func
+};
+
+export default injectIntl(TelemetryModal);
diff --git a/src/containers/gui.jsx b/src/containers/gui.jsx
index 025a73966..4011ba271 100644
--- a/src/containers/gui.jsx
+++ b/src/containers/gui.jsx
@@ -7,7 +7,6 @@ import VM from 'scratch-vm';
 import {defineMessages, injectIntl, intlShape} from 'react-intl';
 
 import ErrorBoundaryHOC from '../lib/error-boundary-hoc.jsx';
-import {openExtensionLibrary} from '../reducers/modals';
 import {
     getIsError,
     getIsShowingProject
@@ -22,7 +21,9 @@ import {
 
 import {
     closeCostumeLibrary,
-    closeBackdropLibrary
+    closeBackdropLibrary,
+    closeTelemetryModal,
+    openExtensionLibrary
 } from '../reducers/modals';
 
 import FontLoaderHOC from '../lib/font-loader-hoc.jsx';
@@ -128,6 +129,7 @@ GUI.propTypes = {
     projectHost: PropTypes.string,
     projectId: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
     projectTitle: PropTypes.string,
+    telemetryModalVisible: PropTypes.bool,
     vm: PropTypes.instanceOf(VM).isRequired
 };
 
@@ -157,11 +159,12 @@ const mapStateToProps = state => {
         loadingStateVisible: state.scratchGui.modals.loadingProject,
         previewInfoVisible: state.scratchGui.modals.previewInfo,
         projectId: state.scratchGui.projectState.projectId,
+        soundsTabVisible: state.scratchGui.editorTab.activeTabIndex === SOUNDS_TAB_INDEX,
         targetIsStage: (
             state.scratchGui.targets.stage &&
             state.scratchGui.targets.stage.id === state.scratchGui.targets.editingTarget
         ),
-        soundsTabVisible: state.scratchGui.editorTab.activeTabIndex === SOUNDS_TAB_INDEX,
+        telemetryModalVisible: state.scratchGui.modals.telemetryModal,
         tipsLibraryVisible: state.scratchGui.modals.tipsLibrary,
         vm: state.scratchGui.vm
     };
@@ -174,6 +177,7 @@ const mapDispatchToProps = dispatch => ({
     onActivateSoundsTab: () => dispatch(activateTab(SOUNDS_TAB_INDEX)),
     onRequestCloseBackdropLibrary: () => dispatch(closeBackdropLibrary()),
     onRequestCloseCostumeLibrary: () => dispatch(closeCostumeLibrary()),
+    onRequestCloseTelemetryModal: () => dispatch(closeTelemetryModal()),
     onUpdateReduxProjectTitle: title => dispatch(setProjectTitle(title))
 });
 
diff --git a/src/lib/app-state-hoc.jsx b/src/lib/app-state-hoc.jsx
index 4156cd094..eacf2eab6 100644
--- a/src/lib/app-state-hoc.jsx
+++ b/src/lib/app-state-hoc.jsx
@@ -51,7 +51,8 @@ const AppStateHOC = function (WrappedComponent, localesOnly) {
                     guiMiddleware,
                     initFullScreen,
                     initPlayer,
-                    initPreviewInfo
+                    initPreviewInfo,
+                    initTelemetryModal
                 } = guiRedux;
                 const {ScratchPaintReducer} = require('scratch-paint');
 
@@ -63,6 +64,8 @@ const AppStateHOC = function (WrappedComponent, localesOnly) {
                     if (props.isPlayerOnly) {
                         initializedGui = initPlayer(initializedGui);
                     }
+                } else if (props.showTelemetryModal) {
+                    initializedGui = initTelemetryModal(initializedGui);
                 } else if (props.showPreviewInfo) {
                     initializedGui = initPreviewInfo(initializedGui);
                 }
@@ -98,6 +101,7 @@ const AppStateHOC = function (WrappedComponent, localesOnly) {
                 isFullScreen, // eslint-disable-line no-unused-vars
                 isPlayerOnly, // eslint-disable-line no-unused-vars
                 showPreviewInfo, // eslint-disable-line no-unused-vars
+                showTelemetryModal, // eslint-disable-line no-unused-vars
                 ...componentProps
             } = this.props;
             return (
diff --git a/src/playground/render-gui.jsx b/src/playground/render-gui.jsx
index 3ae35e4d3..ab67cd2c1 100644
--- a/src/playground/render-gui.jsx
+++ b/src/playground/render-gui.jsx
@@ -6,11 +6,24 @@ import AppStateHOC from '../lib/app-state-hoc.jsx';
 import GUI from '../containers/gui.jsx';
 import HashParserHOC from '../lib/hash-parser-hoc.jsx';
 import TitledHOC from '../lib/titled-hoc.jsx';
+import log from '../lib/log.js';
 
 const onClickLogo = () => {
     window.location = 'https://scratch.mit.edu';
 };
 
+const handleTelemetryModalCancel = () => {
+    log('User canceled telemetry modal');
+};
+
+const handleTelemetryModalOptIn = () => {
+    log('User opted into telemetry');
+};
+
+const handleTelemetryModalOptOut = () => {
+    log('User opted out of telemetry');
+};
+
 /*
  * Render the GUI playground. This is a separate function because importing anything
  * that instantiates the VM causes unsupported browsers to crash
@@ -55,7 +68,13 @@ export default appTarget => {
         simulateScratchDesktop ?
             <WrappedGui
                 isScratchDesktop
+                showTelemetryModal
                 canSave={false}
+                telemetryModalHandlers={{
+                    onCancel: handleTelemetryModalCancel,
+                    onOptIn: handleTelemetryModalOptIn,
+                    onOptOut: handleTelemetryModalOptOut
+                }}
             /> :
             <WrappedGui
                 backpackVisible
diff --git a/src/reducers/gui.js b/src/reducers/gui.js
index 268817d3f..28b335b30 100644
--- a/src/reducers/gui.js
+++ b/src/reducers/gui.js
@@ -122,7 +122,19 @@ const initPreviewInfo = function (currentState) {
         currentState,
         {
             modals: {
-                previewInfo: true
+                previewInfo: true // this key must match `MODAL_PREVIEW_INFO` in modals.js
+            }
+        }
+    );
+};
+
+const initTelemetryModal = function (currentState) {
+    return Object.assign(
+        {},
+        currentState,
+        {
+            modals: {
+                telemetryModal: true // this key must match `MODAL_TELEMETRY` in modals.js
             }
         }
     );
@@ -165,5 +177,6 @@ export {
     initFullScreen,
     initPlayer,
     initPreviewInfo,
+    initTelemetryModal,
     initTutorialCard
 };
diff --git a/src/reducers/modals.js b/src/reducers/modals.js
index 991a47130..7b5cc2723 100644
--- a/src/reducers/modals.js
+++ b/src/reducers/modals.js
@@ -8,6 +8,7 @@ const MODAL_EXTENSION_LIBRARY = 'extensionLibrary';
 const MODAL_IMPORT_INFO = 'importInfo';
 const MODAL_LOADING_PROJECT = 'loadingProject';
 const MODAL_PREVIEW_INFO = 'previewInfo';
+const MODAL_TELEMETRY = 'telemetryModal';
 const MODAL_SOUND_LIBRARY = 'soundLibrary';
 const MODAL_SPRITE_LIBRARY = 'spriteLibrary';
 const MODAL_SOUND_RECORDER = 'soundRecorder';
@@ -22,6 +23,7 @@ const initialState = {
     [MODAL_IMPORT_INFO]: false,
     [MODAL_LOADING_PROJECT]: false,
     [MODAL_PREVIEW_INFO]: false,
+    [MODAL_TELEMETRY]: false,
     [MODAL_SOUND_LIBRARY]: false,
     [MODAL_SPRITE_LIBRARY]: false,
     [MODAL_SOUND_RECORDER]: false,
@@ -77,6 +79,9 @@ const openLoadingProject = function () {
 const openPreviewInfo = function () {
     return openModal(MODAL_PREVIEW_INFO);
 };
+const openTelemetryModal = function () {
+    return openModal(MODAL_TELEMETRY);
+};
 const openSoundLibrary = function () {
     return openModal(MODAL_SOUND_LIBRARY);
 };
@@ -113,6 +118,9 @@ const closeLoadingProject = function () {
 const closePreviewInfo = function () {
     return closeModal(MODAL_PREVIEW_INFO);
 };
+const closeTelemetryModal = function () {
+    return closeModal(MODAL_TELEMETRY);
+};
 const closeSpriteLibrary = function () {
     return closeModal(MODAL_SPRITE_LIBRARY);
 };
@@ -141,6 +149,7 @@ export {
     openSoundLibrary,
     openSpriteLibrary,
     openSoundRecorder,
+    openTelemetryModal,
     openTipsLibrary,
     openConnectionModal,
     closeBackdropLibrary,
@@ -153,6 +162,7 @@ export {
     closeSpriteLibrary,
     closeSoundLibrary,
     closeSoundRecorder,
+    closeTelemetryModal,
     closeTipsLibrary,
     closeConnectionModal
 };