By default, your users will receive in-app notifications when they receive a new message. This in-app popup notification can be disabled or enabled as required using this API.
Replies.inAppNotificationsEnabled = false
IBGReplies.inAppNotificationsEnabled = NO;
Replies.setInAppNotificationEnabled(false);
Replies.setInAppNotificationsEnabled(false);
cordova.plugins.replies.setInAppNotificationEnabled(boolean, successCb, errorCb);
//iOS
Replies.InAppNotificationsEnabled = false;
//Android
Replies.setInAppNotificationEnabled(false);