diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f5e436a16cfe..1ad9a78d59cff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ This is the log of notable changes to the Expo client that are developer-facing.
 
 ### 🎉 New features
 
+- Add `readerMode` and `dismissButtonStyle` (iOS) and `enableDefaultShare` (Android) flags for `WebBrowser` ([#7221](https://github.com/expo/expo/pull/7221) by [@LinusU](https://github.com/LinusU)) & [@mczernek](https://github.com/mczernek))
+
 ### 🐛 Bug fixes
 
 ## 37.0.0
diff --git a/apps/native-component-list/src/screens/WebBrowserScreen.tsx b/apps/native-component-list/src/screens/WebBrowserScreen.tsx
index e6868fc37c9d7..f56c09851454e 100644
--- a/apps/native-component-list/src/screens/WebBrowserScreen.tsx
+++ b/apps/native-component-list/src/screens/WebBrowserScreen.tsx
@@ -20,6 +20,8 @@ interface State {
   lastWarmedPackage?: string;
   barCollapsing: boolean;
   showInRecents: boolean;
+  readerMode: boolean;
+  enableDefaultShare: boolean;
 }
 
 export default class WebBrowserScreen extends React.Component<{}, State> {
@@ -53,6 +55,14 @@ export default class WebBrowserScreen extends React.Component<{}, State> {
     this.setState({ barCollapsing });
   };
 
+  readerModeSwitchChanged = (readerMode: boolean) => {
+    this.setState({ readerMode });
+  };
+
+  enableDefaultShareChanged = (enableDefaultShare: boolean) => {
+    this.setState({ enableDefaultShare });
+  };
+
   showPackagesAlert = async () => {
     const result = await WebBrowser.getCustomTabsSupportingBrowsersAsync();
     Alert.alert('Result', JSON.stringify(result, null, 2));
@@ -67,7 +77,7 @@ export default class WebBrowserScreen extends React.Component<{}, State> {
     Alert.alert('Result', JSON.stringify(result, null, 2));
   };
 
-  handleMayInitWithUrlClicke = async () => {
+  handleMayInitWithUrlClicked = async () => {
     const { selectedPackage: lastWarmedPackage } = this.state;
     this.setState({
       lastWarmedPackage,
@@ -89,8 +99,10 @@ export default class WebBrowserScreen extends React.Component<{}, State> {
       browserPackage: this.state.selectedPackage,
       enableBarCollapsing: this.state.barCollapsing,
       showInRecents: this.state.showInRecents,
+      readerMode: this.state.readerMode,
+      enableDefaultShareMenuItem: this.state.enableDefaultShare,
     };
-    const result = await WebBrowser.openBrowserAsync(url, args);
+    const result = await WebBrowser.openBrowserAsync('https://expo.io', args);
     setTimeout(() => Alert.alert('Result', JSON.stringify(result, null, 2)), 1000);
   };
 
@@ -109,15 +121,25 @@ export default class WebBrowserScreen extends React.Component<{}, State> {
 
   renderIOSChoices = () =>
     Platform.OS === 'ios' && (
-      <View style={styles.label}>
-        <Text>Controls color (#rrggbb):</Text>
-        <TextInput
-          style={styles.input}
-          placeholder="RRGGBB"
-          onChangeText={this.handleControlsColorInputChanged}
-          value={this.state.controlsColorText}
-        />
-      </View>
+      <>
+        <View style={styles.label}>
+          <Text>Controls color (#rrggbb):</Text>
+          <TextInput
+            style={styles.input}
+            placeholder="RRGGBB"
+            onChangeText={this.handleControlsColorInputChanged}
+            value={this.state.controlsColorText}
+          />
+        </View>
+        <View style={styles.label}>
+          <Text>Reader mode</Text>
+          <Switch
+            style={styles.switch}
+            onValueChange={this.readerModeSwitchChanged}
+            value={this.state.readerMode}
+          />
+        </View>
+      </>
     );
 
   renderAndroidChoices = () =>
@@ -139,6 +161,14 @@ export default class WebBrowserScreen extends React.Component<{}, State> {
             value={this.state.showInRecents}
           />
         </View>
+        <View style={styles.label}>
+          <Text>Default share</Text>
+          <Switch
+            style={styles.switch}
+            onValueChange={this.enableDefaultShareChanged}
+            value={this.state.enableDefaultShare}
+          />
+        </View>
         <View style={styles.label}>
           <Text>Force package:</Text>
           <Picker
@@ -160,7 +190,7 @@ export default class WebBrowserScreen extends React.Component<{}, State> {
         <Button style={styles.button} onPress={this.handleWarmUpClicked} title="Warm up." />
         <Button
           style={styles.button}
-          onPress={this.handleMayInitWithUrlClicke}
+          onPress={this.handleMayInitWithUrlClicked}
           title="May init with url."
         />
         <Button style={styles.button} onPress={this.handleCoolDownClicked} title="Cool down." />
diff --git a/docs/pages/versions/unversioned/sdk/webbrowser.md b/docs/pages/versions/unversioned/sdk/webbrowser.md
index 92d8a9492f045..4a9f0b7a0003c 100644
--- a/docs/pages/versions/unversioned/sdk/webbrowser.md
+++ b/docs/pages/versions/unversioned/sdk/webbrowser.md
@@ -68,12 +68,15 @@ Opens the url with Safari in a modal on iOS using [`SFSafariViewController`](htt
 - **browserParams (_object_)** (_optional_) --
   A dictionary with following key-value pairs:
 
-  - **toolbarColor (_optional_) (_string_)** -- color of the toolbar in either `#AARRGGBB` or `#RRGGBB` format.
-  - **enableBarCollapsing (_optional_) (_boolean_)** -- a boolean determining whether the toolbar should be hiding when a user scrolls the website
-  - **showInRecents (_optional_) (_boolean_)** -- (_Android only_) a boolean determining whether browsed website should be shown as separate entry in Android recents/multitasking view. Default: `false`
   - **controlsColor (_optional_) (_string_)** -- (_iOS only_) tint color for controls in SKSafariViewController in `#AARRGGBB` or `#RRGGBB` format.
-  - **showTitle (_optional_) (_boolean_)** -- (_Android only_) a boolean determining whether the browser should show the title of website on the toolbar
+  - **dismissButtonStyle (_optional_) (_string_)** -- (_iOS only_) The style of the dismiss button. Should be one of: `done`, `close`, or `cancel`.
+  - **enableBarCollapsing (_optional_) (_boolean_)** -- a boolean determining whether the toolbar should be hiding when a user scrolls the website.
+  - **enableDefaultShare (_optional_) (_boolean_)** -- (_Android only_) a boolean determining whether a default share item should be added to the menu.
   - **package (_optional_) (_string_)** -- (_Android only_). Package name of a browser to be used to handle Custom Tabs. List of available packages is to be queried by [getCustomTabsSupportingBrowsers](#webbrowsergetcustomtabssupportingbrowsers) method.
+  - **readerMode (_optional_) (_boolean_)** -- (_iOS only_) a boolean determining whether Safari should enter Reader mode, if it is available.
+  - **showInRecents (_optional_) (_boolean_)** -- (_Android only_) a boolean determining whether browsed website should be shown as separate entry in Android recents/multitasking view. Default: `false`
+  - **showTitle (_optional_) (_boolean_)** -- (_Android only_) a boolean determining whether the browser should show the title of website on the toolbar.
+  - **toolbarColor (_optional_) (_string_)** -- color of the toolbar in either `#AARRGGBB` or `#RRGGBB` format.
 
   Note that behavior customization options depend on the actual browser and its version. Some or all of the arguments may be ignored.
 
diff --git a/packages/expo-web-browser/android/src/main/java/expo/modules/webbrowser/WebBrowserModule.java b/packages/expo-web-browser/android/src/main/java/expo/modules/webbrowser/WebBrowserModule.java
index a26551baf3dc1..b309c966ff6c9 100644
--- a/packages/expo-web-browser/android/src/main/java/expo/modules/webbrowser/WebBrowserModule.java
+++ b/packages/expo-web-browser/android/src/main/java/expo/modules/webbrowser/WebBrowserModule.java
@@ -31,10 +31,10 @@ public class WebBrowserModule extends ExportedModule {
   private final static String SERVICE_PACKAGES_KEY = "servicePackages";
   private final static String PREFERRED_BROWSER_PACKAGE = "preferredBrowserPackage";
   private final static String DEFAULT_BROWSER_PACKAGE = "defaultBrowserPackage";
-
   private final static String SHOW_IN_RECENTS = "showInRecents";
-
+  private final static String DEFAULT_SHARE_MENU_ITEM = "enableDefaultShareMenuItem";
   private final static String TOOLBAR_COLOR_KEY = "toolbarColor";
+
   private final static String ERROR_CODE = "EXWebBrowser";
   private static final String TAG = "ExpoWebBrowser";
   private static final String SHOW_TITLE_KEY = "showTitle";
@@ -163,6 +163,10 @@ private Intent createCustomTabsIntent(ReadableArguments arguments) {
 
     builder.setShowTitle(arguments.getBoolean(SHOW_TITLE_KEY, false));
 
+    if (arguments.containsKey(DEFAULT_SHARE_MENU_ITEM) && arguments.getBoolean(DEFAULT_SHARE_MENU_ITEM)) {
+      builder.addDefaultShareMenuItem();
+    }
+
     Intent intent = builder.build().intent;
 
     // We cannot use builder's method enableUrlBarHiding, because there is no corresponding disable method and some browsers enables it by default.
diff --git a/packages/expo-web-browser/build/WebBrowser.types.d.ts b/packages/expo-web-browser/build/WebBrowser.types.d.ts
index 0ae303b26e56e..223031fbbe278 100644
--- a/packages/expo-web-browser/build/WebBrowser.types.d.ts
+++ b/packages/expo-web-browser/build/WebBrowser.types.d.ts
@@ -7,9 +7,12 @@ export declare type WebBrowserOpenOptions = {
     enableBarCollapsing?: boolean;
     showTitle?: boolean;
     /** Android only */
+    enableDefaultShareMenuItem?: boolean;
     showInRecents?: boolean;
     /** iOS only */
     controlsColor?: string;
+    dismissButtonStyle?: 'done' | 'close' | 'cancel';
+    readerMode?: boolean;
     windowName?: string;
     windowFeatures?: string;
 };
diff --git a/packages/expo-web-browser/build/WebBrowser.types.js.map b/packages/expo-web-browser/build/WebBrowser.types.js.map
index 4578124e1204c..97a827a4733b8 100644
--- a/packages/expo-web-browser/build/WebBrowser.types.js.map
+++ b/packages/expo-web-browser/build/WebBrowser.types.js.map
@@ -1 +1 @@
-{"version":3,"file":"WebBrowser.types.js","sourceRoot":"","sources":["../src/WebBrowser.types.ts"],"names":[],"mappings":"AA8BA,MAAM,CAAC,MAAM,oBAAoB,GAAG;IAClC;;OAEG;IACH,MAAM,EAAE,QAAQ;IAChB;;OAEG;IACH,OAAO,EAAE,SAAS;IAClB;;OAEG;IACH,MAAM,EAAE,QAAQ;CACR,CAAC","sourcesContent":["export type RedirectEvent = {\n  url: string;\n};\n\nexport type WebBrowserOpenOptions = {\n  toolbarColor?: string;\n  browserPackage?: string;\n  enableBarCollapsing?: boolean;\n  showTitle?: boolean;\n\n  /** Android only */\n  showInRecents?: boolean;\n\n  /** iOS only */\n  controlsColor?: string;\n\n  // Web\n  windowName?: string;\n  windowFeatures?: string;\n};\n\nexport type WebBrowserAuthSessionResult = WebBrowserRedirectResult | WebBrowserResult;\n\nexport type WebBrowserCustomTabsResults = {\n  defaultBrowserPackage?: string;\n  preferredBrowserPackage?: string;\n  browserPackages: string[];\n  servicePackages: string[];\n};\n\nexport const WebBrowserResultType = {\n  /**\n   * iOS only\n   */\n  CANCEL: 'cancel',\n  /**\n   * iOS only\n   */\n  DISMISS: 'dismiss',\n  /**\n   * Android only\n   */\n  OPENED: 'opened',\n} as const;\n\nexport type WebBrowserResultType = typeof WebBrowserResultType[keyof typeof WebBrowserResultType];\n\nexport type WebBrowserResult = {\n  // cancel and dismiss are iOS only, opened is Android only\n  type: WebBrowserResultType;\n};\n\nexport type WebBrowserRedirectResult = {\n  type: 'success';\n  url: string;\n};\n\nexport type ServiceActionResult = {\n  servicePackage?: string;\n};\n\nexport type WebBrowserMayInitWithUrlResult = ServiceActionResult;\nexport type WebBrowserWarmUpResult = ServiceActionResult;\nexport type WebBrowserCoolDownResult = ServiceActionResult;\n"]}
\ No newline at end of file
+{"version":3,"file":"WebBrowser.types.js","sourceRoot":"","sources":["../src/WebBrowser.types.ts"],"names":[],"mappings":"AAiCA,MAAM,CAAC,MAAM,oBAAoB,GAAG;IAClC;;OAEG;IACH,MAAM,EAAE,QAAQ;IAChB;;OAEG;IACH,OAAO,EAAE,SAAS;IAClB;;OAEG;IACH,MAAM,EAAE,QAAQ;CACR,CAAC","sourcesContent":["export type RedirectEvent = {\n  url: string;\n};\n\nexport type WebBrowserOpenOptions = {\n  toolbarColor?: string;\n  browserPackage?: string;\n  enableBarCollapsing?: boolean;\n  showTitle?: boolean;\n\n  /** Android only */\n  enableDefaultShareMenuItem?: boolean;\n  showInRecents?: boolean;\n\n  /** iOS only */\n  controlsColor?: string;\n  dismissButtonStyle?: 'done' | 'close' | 'cancel';\n  readerMode?: boolean;\n\n  // Web\n  windowName?: string;\n  windowFeatures?: string;\n};\n\nexport type WebBrowserAuthSessionResult = WebBrowserRedirectResult | WebBrowserResult;\n\nexport type WebBrowserCustomTabsResults = {\n  defaultBrowserPackage?: string;\n  preferredBrowserPackage?: string;\n  browserPackages: string[];\n  servicePackages: string[];\n};\n\nexport const WebBrowserResultType = {\n  /**\n   * iOS only\n   */\n  CANCEL: 'cancel',\n  /**\n   * iOS only\n   */\n  DISMISS: 'dismiss',\n  /**\n   * Android only\n   */\n  OPENED: 'opened',\n} as const;\n\nexport type WebBrowserResultType = typeof WebBrowserResultType[keyof typeof WebBrowserResultType];\n\nexport type WebBrowserResult = {\n  // cancel and dismiss are iOS only, opened is Android only\n  type: WebBrowserResultType;\n};\n\nexport type WebBrowserRedirectResult = {\n  type: 'success';\n  url: string;\n};\n\nexport type ServiceActionResult = {\n  servicePackage?: string;\n};\n\nexport type WebBrowserMayInitWithUrlResult = ServiceActionResult;\nexport type WebBrowserWarmUpResult = ServiceActionResult;\nexport type WebBrowserCoolDownResult = ServiceActionResult;\n"]}
\ No newline at end of file
diff --git a/packages/expo-web-browser/ios/EXWebBrowser/EXWebBrowser.m b/packages/expo-web-browser/ios/EXWebBrowser/EXWebBrowser.m
index de03ab1583470..d47cff31341e4 100644
--- a/packages/expo-web-browser/ios/EXWebBrowser/EXWebBrowser.m
+++ b/packages/expo-web-browser/ios/EXWebBrowser/EXWebBrowser.m
@@ -89,13 +89,29 @@ - (dispatch_queue_t)methodQueue
   }
 
   NSURL *url = [[NSURL alloc] initWithString:authURL];
+  BOOL readerMode = [arguments[@"readerMode"] boolValue];
+  BOOL enableBarCollapsing = [arguments[@"enableBarCollapsing"] boolValue];
   SFSafariViewController *safariVC = nil;
   if (@available(iOS 11, *)) {
     SFSafariViewControllerConfiguration *config = [[SFSafariViewControllerConfiguration alloc] init];
-    config.barCollapsingEnabled = [arguments[@"enableBarCollapsing"] boolValue];
+    config.barCollapsingEnabled = enableBarCollapsing;
+    config.entersReaderIfAvailable = readerMode;
     safariVC = [[SFSafariViewController alloc] initWithURL:url configuration:config];
   } else {
-    safariVC = [[SFSafariViewController alloc] initWithURL:url];
+    safariVC = [[SFSafariViewController alloc] initWithURL:url entersReaderIfAvailable:readerMode];
+  }
+
+  if (@available(iOS 11.0, *)) {
+    NSString *dismissButtonStyle = [arguments valueForKey:@"dismissButtonStyle"];
+    if ([@"done" isEqualToString:dismissButtonStyle]) {
+      safariVC.dismissButtonStyle = SFSafariViewControllerDismissButtonStyleDone;
+    }
+    else if ([@"close" isEqualToString:dismissButtonStyle]) {
+      safariVC.dismissButtonStyle = SFSafariViewControllerDismissButtonStyleClose;
+    }
+    else if ([@"cancel" isEqualToString:dismissButtonStyle]) {
+      safariVC.dismissButtonStyle = SFSafariViewControllerDismissButtonStyleCancel;
+    }
   }
 
   if([[arguments allKeys] containsObject:WebBrowserToolbarColorKey]) {
diff --git a/packages/expo-web-browser/src/WebBrowser.types.ts b/packages/expo-web-browser/src/WebBrowser.types.ts
index 7258b72a310bf..acea812535d37 100644
--- a/packages/expo-web-browser/src/WebBrowser.types.ts
+++ b/packages/expo-web-browser/src/WebBrowser.types.ts
@@ -9,10 +9,13 @@ export type WebBrowserOpenOptions = {
   showTitle?: boolean;
 
   /** Android only */
+  enableDefaultShareMenuItem?: boolean;
   showInRecents?: boolean;
 
   /** iOS only */
   controlsColor?: string;
+  dismissButtonStyle?: 'done' | 'close' | 'cancel';
+  readerMode?: boolean;
 
   // Web
   windowName?: string;