diff --git a/react/features/base/ui/components/native/Switch.tsx b/react/features/base/ui/components/native/Switch.tsx
new file mode 100644
index 0000000000..a29d79471c
--- /dev/null
+++ b/react/features/base/ui/components/native/Switch.tsx
@@ -0,0 +1,35 @@
+import React from 'react';
+import { ColorValue } from 'react-native';
+import { Switch as NativeSwitch } from 'react-native-paper';
+
+import { SwitchProps } from '../types';
+
+interface Props extends SwitchProps {
+
+    /**
+     * Custom styles for the switch.
+     */
+    style?: Object;
+
+    /**
+     * Color of the switch button.
+     */
+    thumbColor?: ColorValue;
+
+    /**
+     * Color of the switch background.
+     */
+    trackColor?: Object;
+}
+
+const Switch = ({ checked, disabled, onChange, thumbColor, trackColor, style }: Props) => (
+    <NativeSwitch
+        disabled = { disabled }
+        onValueChange = { onChange }
+        style = { style }
+        thumbColor = { thumbColor }
+        trackColor = { trackColor }
+        value = { checked } />
+);
+
+export default Switch;
diff --git a/react/features/base/ui/components/types.ts b/react/features/base/ui/components/types.ts
index e2a10075b8..23e0684af2 100644
--- a/react/features/base/ui/components/types.ts
+++ b/react/features/base/ui/components/types.ts
@@ -77,3 +77,21 @@ export interface InputProps {
      */
     value: string | number;
 }
+
+export interface SwitchProps {
+
+    /**
+     * Whether or not the toggle is on.
+     */
+    checked: boolean;
+
+    /**
+     * Whether or not the toggle is disabled.
+     */
+    disabled?: boolean;
+
+    /**
+     * Toggle change callback.
+     */
+    onChange: (on?: boolean) => void;
+}
diff --git a/react/features/base/ui/components/web/Switch.tsx b/react/features/base/ui/components/web/Switch.tsx
index b86ba162fc..8262955430 100644
--- a/react/features/base/ui/components/web/Switch.tsx
+++ b/react/features/base/ui/components/web/Switch.tsx
@@ -3,28 +3,14 @@ import clsx from 'clsx';
 import React, { useCallback } from 'react';
 
 import { isMobileBrowser } from '../../../environment/utils';
+import { SwitchProps } from '../types';
 
-interface SwitchProps {
-
-    /**
-     * Whether or not the toggle is on.
-     */
-    checked: boolean;
-
-    /**
-     * Whether or not the toggle is disabled.
-     */
-    disabled?: boolean;
+interface Props extends SwitchProps {
 
     /**
      * Id of the toggle.
      */
     id?: string;
-
-    /**
-     * Toggle change callback.
-     */
-    onChange: (on?: boolean) => void;
 }
 
 const useStyles = makeStyles((theme: any) => {
@@ -92,7 +78,7 @@ const useStyles = makeStyles((theme: any) => {
     };
 });
 
-const Switch = ({ id, checked, disabled, onChange }: SwitchProps) => {
+const Switch = ({ id, checked, disabled, onChange }: Props) => {
     const styles = useStyles();
     const isMobile = isMobileBrowser();
 
diff --git a/react/features/lobby/components/native/LobbyModeSwitch.js b/react/features/lobby/components/native/LobbyModeSwitch.tsx
similarity index 68%
rename from react/features/lobby/components/native/LobbyModeSwitch.js
rename to react/features/lobby/components/native/LobbyModeSwitch.tsx
index a5d4f7065d..caf4de051c 100644
--- a/react/features/lobby/components/native/LobbyModeSwitch.js
+++ b/react/features/lobby/components/native/LobbyModeSwitch.tsx
@@ -1,22 +1,25 @@
-// @flow
-
 import React from 'react';
-import { Switch, View } from 'react-native';
+import { WithTranslation } from 'react-i18next';
+import { View } from 'react-native';
 
-import { translate } from '../../../base/i18n';
-import { connect } from '../../../base/redux';
+import { translate } from '../../../base/i18n/functions';
+import { connect } from '../../../base/redux/functions';
+import Switch from '../../../base/ui/components/native/Switch';
 import {
     DISABLED_TRACK_COLOR,
     ENABLED_TRACK_COLOR,
     THUMB_COLOR
+
+    // @ts-ignore
 } from '../../../settings/components/native/styles';
 
+// @ts-ignore
 import styles from './styles';
 
 /**
  * The type of the React {@code Component} props of {@link LobbyModeSwitch}.
  */
-type Props = {
+interface Props extends WithTranslation {
 
     /**
      * True if the lobby mode is currently enabled for this conference.
@@ -26,8 +29,8 @@ type Props = {
     /**
      * Callback to be invoked when handling enable-disable lobby mode switch.
      */
-    onToggleLobbyMode: Function
-};
+    onToggleLobbyMode: (on?: boolean) => void;
+}
 
 /**
  * Component meant to Enable/Disable lobby mode.
@@ -43,14 +46,14 @@ function LobbyModeSwitch(
     return (
         <View style = { styles.lobbySwitchContainer }>
             <Switch
-                onValueChange = { onToggleLobbyMode }
+                checked = { lobbyEnabled }
+                onChange = { onToggleLobbyMode }
                 style = { styles.lobbySwitchIcon }
                 thumbColor = { THUMB_COLOR }
                 trackColor = {{
                     true: ENABLED_TRACK_COLOR,
                     false: DISABLED_TRACK_COLOR
-                }}
-                value = { lobbyEnabled } />
+                }} />
         </View>
     );
 }
diff --git a/react/features/polls/components/AbstractPollAnswer.js b/react/features/polls/components/AbstractPollAnswer.tsx
similarity index 82%
rename from react/features/polls/components/AbstractPollAnswer.js
rename to react/features/polls/components/AbstractPollAnswer.tsx
index 1c5d257c15..a5e18d915e 100644
--- a/react/features/polls/components/AbstractPollAnswer.js
+++ b/react/features/polls/components/AbstractPollAnswer.tsx
@@ -1,16 +1,17 @@
-// @flow
-
-import React, { useCallback, useState } from 'react';
-import type { AbstractComponent } from 'react';
+/* eslint-disable lines-around-comment */
+import React, { ComponentType, useCallback, useState } from 'react';
 import { useTranslation } from 'react-i18next';
 import { useDispatch, useSelector } from 'react-redux';
 
+// @ts-ignore
 import { sendAnalytics, createPollEvent } from '../../analytics';
-import { getLocalParticipant, getParticipantById } from '../../base/participants';
+import { IState } from '../../app/types';
+import { getLocalParticipant, getParticipantById } from '../../base/participants/functions';
 import { useBoundSelector } from '../../base/util/hooks';
+// @ts-ignore
 import { registerVote, setVoteChanging } from '../actions';
 import { COMMAND_ANSWER_POLL } from '../constants';
-import type { Poll } from '../types';
+import { Poll } from '../types';
 
 /**
  * The type of the React {@code Component} props of inheriting component.
@@ -24,13 +25,13 @@ type InputProps = {
  * concrete implementations (web/native).
  **/
 export type AbstractProps = {
-    checkBoxStates: Function,
+    checkBoxStates: boolean[],
     creatorName: string,
     poll: Poll,
     setCheckbox: Function,
-    skipAnswer: Function,
-    skipChangeVote: Function,
-    submitAnswer: Function,
+    skipAnswer: () => void,
+    skipChangeVote: () => void,
+    submitAnswer: () => void,
     t: Function,
 };
 
@@ -41,13 +42,13 @@ export type AbstractProps = {
  * @param {React.AbstractComponent} Component - The concrete component.
  * @returns {React.AbstractComponent}
  */
-const AbstractPollAnswer = (Component: AbstractComponent<AbstractProps>) => (props: InputProps) => {
+const AbstractPollAnswer = (Component: ComponentType<AbstractProps>) => (props: InputProps) => {
 
     const { pollId } = props;
 
-    const conference: Object = useSelector(state => state['features/base/conference'].conference);
+    const conference: any = useSelector((state: IState) => state['features/base/conference'].conference);
 
-    const poll: Poll = useSelector(state => state['features/polls'].polls[pollId]);
+    const poll: Poll = useSelector((state: any) => state['features/polls'].polls[pollId]);
 
     const { id: localId } = useSelector(getLocalParticipant);
 
diff --git a/react/features/polls/components/native/PollAnswer.js b/react/features/polls/components/native/PollAnswer.tsx
similarity index 81%
rename from react/features/polls/components/native/PollAnswer.js
rename to react/features/polls/components/native/PollAnswer.tsx
index a5b0456ff6..34f6256910 100644
--- a/react/features/polls/components/native/PollAnswer.js
+++ b/react/features/polls/components/native/PollAnswer.tsx
@@ -1,17 +1,18 @@
-// @flow
-
+/* eslint-disable lines-around-comment */
 import React from 'react';
-import { Switch, Text, View } from 'react-native';
+import { Text, View } from 'react-native';
 import { useSelector } from 'react-redux';
 
-import { getLocalParticipant } from '../../../base/participants';
+import { getLocalParticipant } from '../../../base/participants/functions';
 import BaseTheme from '../../../base/ui/components/BaseTheme.native';
 import Button from '../../../base/ui/components/native/Button';
+import Switch from '../../../base/ui/components/native/Switch';
 import { BUTTON_TYPES } from '../../../base/ui/constants';
+// @ts-ignore
 import { isSubmitAnswerDisabled } from '../../functions';
-import AbstractPollAnswer from '../AbstractPollAnswer';
-import type { AbstractProps } from '../AbstractPollAnswer';
+import AbstractPollAnswer, { AbstractProps } from '../AbstractPollAnswer';
 
+// @ts-ignore
 import { chatStyles, dialogStyles } from './styles';
 
 
@@ -42,10 +43,10 @@ const PollAnswer = (props: AbstractProps) => {
                         key = { index }
                         style = { chatStyles.switchRow } >
                         <Switch
-                            /* eslint-disable react/jsx-no-bind */
-                            onValueChange = { state => setCheckbox(index, state) }
-                            trackColor = {{ true: BaseTheme.palette.action01 }}
-                            value = { checkBoxStates[index] } />
+                            checked = { checkBoxStates[index] }
+                            /* eslint-disable-next-line react/jsx-no-bind */
+                            onChange = { state => setCheckbox(index, state) }
+                            trackColor = {{ true: BaseTheme.palette.action01 }} />
                         <Text style = { chatStyles.switchLabel }>{answer.name}</Text>
                     </View>
                 ))}
diff --git a/react/features/polls/constants.js b/react/features/polls/constants.ts
similarity index 95%
rename from react/features/polls/constants.js
rename to react/features/polls/constants.ts
index effbfc7274..f4cc3fc0de 100644
--- a/react/features/polls/constants.js
+++ b/react/features/polls/constants.ts
@@ -1,5 +1,3 @@
-// @flow
-
 export const COMMAND_NEW_POLL = 'new-poll';
 export const COMMAND_ANSWER_POLL = 'answer-poll';
 export const COMMAND_OLD_POLLS = 'old-polls';
diff --git a/react/features/polls/types.js b/react/features/polls/types.ts
similarity index 93%
rename from react/features/polls/types.js
rename to react/features/polls/types.ts
index 65f36e1cb2..55d0f63c4c 100644
--- a/react/features/polls/types.js
+++ b/react/features/polls/types.ts
@@ -1,7 +1,15 @@
-// @flow
-
 export type Answer = {
 
+    /**
+     * An array of boolean: true if the answer was chosen by the responder, else false.
+     */
+    answers: Array<boolean>,
+
+    /**
+     * ID of the parent Poll of this answer.
+     */
+    pollId: string,
+
     /**
      * ID of the voter for this answer.
      */
@@ -10,42 +18,22 @@ export type Answer = {
     /**
      * Name of the voter.
      */
-    voterName: string,
-
-    /**
-     * ID of the parent Poll of this answer.
-     */
-    pollId: string,
-
-    /**
-     * An array of boolean: true if the answer was chosen by the responder, else false.
-     */
-    answers: Array<boolean>
+    voterName: string
 };
 
 export type Poll = {
 
+    /**
+     * An array of answers:
+     * the name of the answer name and a map of ids and names of voters voting for this option.
+     */
+    answers: Array<{ name: string, voters: Map<string, string> }>,
+
     /**
      * Whether the poll vote is being edited/changed.
      */
     changingVote: boolean,
 
-    /**
-     * ID of the sender of this poll.
-     */
-    senderId: string,
-
-
-    /**
-     * Name of the sender of this poll
-     * Store poll sender name in case they exit the call.
-     */
-    senderName: string,
-
-    /**
-     * Whether the results should be shown instead of the answer form.
-     */
-    showResults: boolean,
 
     /**
      * The last sent votes for this poll, or null if voting was skipped
@@ -59,8 +47,18 @@ export type Poll = {
     question: string,
 
     /**
-     * An array of answers:
-     * the name of the answer name and a map of ids and names of voters voting for this option.
+     * ID of the sender of this poll.
      */
-    answers: Array<{ name: string, voters: Map<string, string> }>,
+    senderId: string,
+
+    /**
+     * Name of the sender of this poll
+     * Store poll sender name in case they exit the call.
+     */
+    senderName: string,
+
+    /**
+     * Whether the results should be shown instead of the answer form.
+     */
+    showResults: boolean
 };
diff --git a/react/features/recording/components/Recording/AbstractStartRecordingDialogContent.tsx b/react/features/recording/components/Recording/AbstractStartRecordingDialogContent.tsx
index e284497571..270028119f 100644
--- a/react/features/recording/components/Recording/AbstractStartRecordingDialogContent.tsx
+++ b/react/features/recording/components/Recording/AbstractStartRecordingDialogContent.tsx
@@ -123,7 +123,7 @@ export interface Props extends WithTranslation {
     /**
      * Callback to be invoked on sharing setting change.
      */
-    onSharingSettingChanged: Function,
+    onSharingSettingChanged: () => void,
 
     /**
      * The currently selected recording service of type: RECORDING_TYPES.
diff --git a/react/features/recording/components/Recording/native/StartRecordingDialogContent.tsx b/react/features/recording/components/Recording/native/StartRecordingDialogContent.tsx
index 8d01c6a29b..47e6c70aaf 100644
--- a/react/features/recording/components/Recording/native/StartRecordingDialogContent.tsx
+++ b/react/features/recording/components/Recording/native/StartRecordingDialogContent.tsx
@@ -1,13 +1,14 @@
 /* eslint-disable lines-around-comment  */
 import React from 'react';
 import { Image, View } from 'react-native';
-import { Switch, Text } from 'react-native-paper';
+import { Text } from 'react-native-paper';
 
 import { translate } from '../../../../base/i18n/functions';
 // @ts-ignore
 import { LoadingIndicator } from '../../../../base/react';
 import { connect } from '../../../../base/redux/functions';
 import Button from '../../../../base/ui/components/native/Button';
+import Switch from '../../../../base/ui/components/native/Switch';
 import { BUTTON_TYPES } from '../../../../base/ui/constants';
 // @ts-ignore
 import { RECORDING_TYPES } from '../../../constants';
@@ -73,11 +74,11 @@ class StartRecordingDialogContent extends AbstractStartRecordingDialogContent<Pr
             = integrationsEnabled
                 ? (
                     <Switch
+                        checked = { selectedRecordingService === RECORDING_TYPES.JITSI_REC_SERVICE }
                         disabled = { isValidating }
-                        onValueChange = { this._onRecordingServiceSwitchChange }
+                        onChange = { this._onRecordingServiceSwitchChange }
                         style = { styles.switch }
-                        trackColor = {{ false: TRACK_COLOR }}
-                        value = { selectedRecordingService === RECORDING_TYPES.JITSI_REC_SERVICE } />
+                        trackColor = {{ false: TRACK_COLOR }} />
                 ) : null;
 
         return (
@@ -133,12 +134,11 @@ class StartRecordingDialogContent extends AbstractStartRecordingDialogContent<Pr
                     { t('recording.fileSharingdescription') }
                 </Text>
                 <Switch
+                    checked = { sharingSetting }
                     disabled = { isValidating }
-                    // @ts-ignore
-                    onValueChange = { onSharingSettingChanged }
+                    onChange = { onSharingSettingChanged }
                     style = { styles.switch }
-                    trackColor = {{ false: TRACK_COLOR }}
-                    value = { sharingSetting } />
+                    trackColor = {{ false: TRACK_COLOR }} />
             </View>
         );
     }
@@ -278,12 +278,11 @@ class StartRecordingDialogContent extends AbstractStartRecordingDialogContent<Pr
         if (fileRecordingsServiceEnabled) {
             switchContent = (
                 <Switch
+                    checked = { selectedRecordingService === RECORDING_TYPES.DROPBOX }
                     disabled = { isValidating }
-                    onValueChange = { this._onDropboxSwitchChange }
+                    onChange = { this._onDropboxSwitchChange }
                     style = { styles.switch }
-                    trackColor = {{ false: TRACK_COLOR }}
-                    value = { selectedRecordingService
-                        === RECORDING_TYPES.DROPBOX } />
+                    trackColor = {{ false: TRACK_COLOR }} />
             );
         }
 
diff --git a/react/features/settings/components/native/SettingsView.js b/react/features/settings/components/native/SettingsView.js
index 7c640cb93b..54d7c8ff43 100644
--- a/react/features/settings/components/native/SettingsView.js
+++ b/react/features/settings/components/native/SettingsView.js
@@ -11,7 +11,6 @@ import {
 } from 'react-native';
 import {
     Divider,
-    Switch,
     TextInput,
     withTheme
 } from 'react-native-paper';
@@ -24,6 +23,7 @@ import {
     getParticipantDisplayName
 } from '../../../base/participants';
 import { connect } from '../../../base/redux';
+import Switch from '../../../base/ui/components/native/Switch';
 import { screen } from '../../../mobile/navigation/routes';
 import { AVATAR_SIZE } from '../../../welcome/components/styles';
 import { normalizeUserInputURL, isServerURLChangeEnabled } from '../../functions';
@@ -269,24 +269,24 @@ class SettingsView extends AbstractSettingsView<Props, State> {
                         <FormRow
                             label = 'settingsView.startWithAudioMuted'>
                             <Switch
-                                onValueChange = { this._onStartAudioMutedChange }
+                                checked = { startWithAudioMuted }
+                                onChange = { this._onStartAudioMutedChange }
                                 thumbColor = { THUMB_COLOR }
                                 trackColor = {{
                                     true: ENABLED_TRACK_COLOR,
                                     false: DISABLED_TRACK_COLOR
-                                }}
-                                value = { startWithAudioMuted } />
+                                }} />
                         </FormRow>
                         <Divider style = { styles.fieldSeparator } />
                         <FormRow label = 'settingsView.startWithVideoMuted'>
                             <Switch
-                                onValueChange = { this._onStartVideoMutedChange }
+                                checked = { startWithVideoMuted }
+                                onChange = { this._onStartVideoMutedChange }
                                 thumbColor = { THUMB_COLOR }
                                 trackColor = {{
                                     true: ENABLED_TRACK_COLOR,
                                     false: DISABLED_TRACK_COLOR
-                                }}
-                                value = { startWithVideoMuted } />
+                                }} />
                         </FormRow>
                     </FormSectionAccordion>
                     <FormSectionAccordion
@@ -325,13 +325,13 @@ class SettingsView extends AbstractSettingsView<Props, State> {
                                 <FormRow
                                     label = 'settingsView.disableCallIntegration'>
                                     <Switch
-                                        onValueChange = { this._onDisableCallIntegration }
+                                        checked = { disableCallIntegration }
+                                        onChange = { this._onDisableCallIntegration }
                                         thumbColor = { THUMB_COLOR }
                                         trackColor = {{
                                             true: ENABLED_TRACK_COLOR,
                                             false: DISABLED_TRACK_COLOR
-                                        }}
-                                        value = { disableCallIntegration } />
+                                        }} />
                                 </FormRow>
                                 <Divider style = { styles.fieldSeparator } />
                             </>
@@ -339,13 +339,13 @@ class SettingsView extends AbstractSettingsView<Props, State> {
                         <FormRow
                             label = 'settingsView.disableP2P'>
                             <Switch
-                                onValueChange = { this._onDisableP2P }
+                                checked = { disableP2P }
+                                onChange = { this._onDisableP2P }
                                 thumbColor = { THUMB_COLOR }
                                 trackColor = {{
                                     true: ENABLED_TRACK_COLOR,
                                     false: DISABLED_TRACK_COLOR
-                                }}
-                                value = { disableP2P } />
+                                }} />
                         </FormRow>
                         <Divider style = { styles.fieldSeparator } />
                         {AppInfo.GOOGLE_SERVICES_ENABLED && (
@@ -353,13 +353,13 @@ class SettingsView extends AbstractSettingsView<Props, State> {
                                 fieldSeparator = { true }
                                 label = 'settingsView.disableCrashReporting'>
                                 <Switch
-                                    onValueChange = { this._onDisableCrashReporting }
+                                    checked = { disableCrashReporting }
+                                    onChange = { this._onDisableCrashReporting }
                                     thumbColor = { THUMB_COLOR }
                                     trackColor = {{
                                         true: ENABLED_TRACK_COLOR,
                                         false: DISABLED_TRACK_COLOR
-                                    }}
-                                    value = { disableCrashReporting } />
+                                    }} />
                             </FormRow>
                         )}
                     </FormSectionAccordion>