diff --git a/README.md b/README.md
index 1ac090d68..0058b462a 100644
--- a/README.md
+++ b/README.md
@@ -316,6 +316,8 @@ request is an object containing:
 - `sound` : The sound played when the notification is fired.
 - `category` : The category of this notification, required for actionable notifications.
 - `isSilent` : If true, the notification will appear without sound.
+- `isCritical` : If true, the notification sound be played even when the device is locked, muted, or has Do Not Disturb enabled.
+- `criticalSoundVolume` : A number between 0 and 1 for volume of critical notification. Default volume will be used if not specified.
 - `userInfo` : An object containing additional notification data.
 
 ---
@@ -548,6 +550,9 @@ Requests notification permissions from iOS, prompting the user's dialog box. By
 - `alert`
 - `badge`
 - `sound`
+- `critical`
+
+`critical` requires special entitlement that could be requested here: https://developer.apple.com/contact/request/notifications-critical-alerts-entitlement/
 
 If a map is provided to the method, only the permissions with truthy values will be requested.
 
@@ -555,9 +560,9 @@ This method returns a promise that will resolve when the user accepts, rejects,
 
 **Parameters:**
 
-| Name        | Type  | Required | Description            |
-| ----------- | ----- | -------- | ---------------------- |
-| permissions | array | No       | alert, badge, or sound |
+| Name        | Type  | Required | Description                     |
+| ----------- | ----- | -------- | ------------------------------- |
+| permissions | array | No       | alert, badge, sound or critical |
 
 ---
 
@@ -592,6 +597,7 @@ See what push permissions are currently enabled.
 - `alert` :boolean
 - `badge` :boolean
 - `sound` :boolean
+- `critical` :boolean
 - `lockScreen` :boolean
 - `notificationCenter` :boolean
 - `authorizationStatus` :AuthorizationStatus
diff --git a/index.d.ts b/index.d.ts
index d59ba22a4..13679d261 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -178,6 +178,14 @@ export type NotificationRequest = {
    * Sets notification to be silent
    */
   isSilent?: boolean;
+  /**
+   * Sets notification to be critical
+   */
+  isCritical?: boolean;
+  /**
+   * The volume for the critical alert’s sound. Set this to a value between 0.0 (silent) and 1.0 (full volume).
+   */
+  criticalSoundVolume?: number;
   /**
    * Optional data to be added to the notification
    */
@@ -291,6 +299,7 @@ export interface PushNotificationPermissions {
   alert?: boolean;
   badge?: boolean;
   sound?: boolean;
+  critical?: boolean;
   lockScreen?: boolean;
   notificationCenter?: boolean;
   authorizationStatus?: AuthorizationStatus[keyof AuthorizationStatus];
diff --git a/ios/RCTConvert+Notification.m b/ios/RCTConvert+Notification.m
index 434ef80a4..9efb776a6 100644
--- a/ios/RCTConvert+Notification.m
+++ b/ios/RCTConvert+Notification.m
@@ -95,6 +95,8 @@ + (UNNotificationRequest *)UNNotificationRequest:(id)json
     NSDictionary<NSString *, id> *details = [self NSDictionary:json];
     
     BOOL isSilent = [RCTConvert BOOL:details[@"isSilent"]];
+    BOOL isCritical = [RCTConvert BOOL:details[@"isCritical"]];
+    float criticalSoundVolume = [RCTConvert float:details[@"criticalSoundVolume"]];
     NSString* identifier = [RCTConvert NSString:details[@"id"]];
     
     
@@ -112,7 +114,15 @@ + (UNNotificationRequest *)UNNotificationRequest:(id)json
 
     content.userInfo = [RCTConvert NSDictionary:details[@"userInfo"]];
     if (!isSilent) {
-      content.sound = [RCTConvert NSString:details[@"sound"]] ? [UNNotificationSound soundNamed:[RCTConvert NSString:details[@"sound"]]] : [UNNotificationSound defaultSound];
+        if (isCritical) {
+            if (criticalSoundVolume) {
+                content.sound = [RCTConvert NSString:details[@"sound"]] ? [UNNotificationSound criticalSoundNamed:[RCTConvert NSString:details[@"sound"]] withAudioVolume:criticalSoundVolume] : [UNNotificationSound defaultCriticalSoundWithAudioVolume:criticalSoundVolume];
+            } else {
+                content.sound = [RCTConvert NSString:details[@"sound"]] ? [UNNotificationSound criticalSoundNamed:[RCTConvert NSString:details[@"sound"]]] : [UNNotificationSound defaultCriticalSound];
+            }
+        } else {
+            content.sound = [RCTConvert NSString:details[@"sound"]] ? [UNNotificationSound soundNamed:[RCTConvert NSString:details[@"sound"]]] : [UNNotificationSound defaultSound];
+        }
     }
 
     NSDate* fireDate = [RCTConvert NSDate:details[@"fireDate"]];
diff --git a/ios/RNCPushNotificationIOS.m b/ios/RNCPushNotificationIOS.m
index 89adf61d9..3ef7bf4f0 100644
--- a/ios/RNCPushNotificationIOS.m
+++ b/ios/RNCPushNotificationIOS.m
@@ -212,6 +212,9 @@ - (void)handleRemoteNotificationRegistrationError:(NSNotification *)notification
     if ([RCTConvert BOOL:permissions[@"sound"]]) {
       types |= UNAuthorizationOptionSound;
     }
+    if ([RCTConvert BOOL:permissions[@"critical"]]) {
+      types |= UNAuthorizationOptionCriticalAlert;
+    }
   } else {
     types = UNAuthorizationOptionAlert | UNAuthorizationOptionBadge | UNAuthorizationOptionSound;
   }
@@ -241,7 +244,7 @@ - (void)handleRemoteNotificationRegistrationError:(NSNotification *)notification
 RCT_EXPORT_METHOD(checkPermissions:(RCTResponseSenderBlock)callback)
 {
   if (RCTRunningInAppExtension()) {
-    callback(@[RCTSettingsDictForUNNotificationSettings(NO, NO, NO, NO, NO, UNAuthorizationStatusNotDetermined)]);
+    callback(@[RCTSettingsDictForUNNotificationSettings(NO, NO, NO, NO, NO, NO, UNAuthorizationStatusNotDetermined)]);
     return;
   }
   
@@ -254,13 +257,14 @@ - (void)handleRemoteNotificationRegistrationError:(NSNotification *)notification
   return RCTSettingsDictForUNNotificationSettings(settings.alertSetting == UNNotificationSettingEnabled,
                                                   settings.badgeSetting == UNNotificationSettingEnabled,
                                                   settings.soundSetting == UNNotificationSettingEnabled,
+                                                  settings.criticalAlertSetting == UNNotificationSettingEnabled,
                                                   settings.lockScreenSetting == UNNotificationSettingEnabled,
                                                   settings.notificationCenterSetting == UNNotificationSettingEnabled,
                                                   settings.authorizationStatus);
   }
 
-static inline NSDictionary *RCTSettingsDictForUNNotificationSettings(BOOL alert, BOOL badge, BOOL sound, BOOL lockScreen, BOOL notificationCenter, UNAuthorizationStatus authorizationStatus) {
-  return @{@"alert": @(alert), @"badge": @(badge), @"sound": @(sound), @"lockScreen": @(lockScreen), @"notificationCenter": @(notificationCenter), @"authorizationStatus": @(authorizationStatus)};
+static inline NSDictionary *RCTSettingsDictForUNNotificationSettings(BOOL alert, BOOL badge, BOOL sound, BOOL critical, BOOL lockScreen, BOOL notificationCenter, UNAuthorizationStatus authorizationStatus) {
+  return @{@"alert": @(alert), @"badge": @(badge), @"sound": @(sound), @"critical": @(critical), @"lockScreen": @(lockScreen), @"notificationCenter": @(notificationCenter), @"authorizationStatus": @(authorizationStatus)};
   }
 
 /**
diff --git a/js/index.js b/js/index.js
index ad76ed8bb..1d3ae7d06 100644
--- a/js/index.js
+++ b/js/index.js
@@ -379,10 +379,12 @@ class PushNotificationIOS {
     alert?: boolean,
     badge?: boolean,
     sound?: boolean,
+    critical?: boolean,
   }): Promise<{
     alert: boolean,
     badge: boolean,
     sound: boolean,
+    critical: boolean,
   }> {
     let requestedPermissions = {
       alert: true,
@@ -394,6 +396,7 @@ class PushNotificationIOS {
         alert: !!permissions.alert,
         badge: !!permissions.badge,
         sound: !!permissions.sound,
+        critical: !!permissions.critical,
       };
     }
     invariant(