diff --git a/apps/documenteditor/mobile/app/controller/Main.js b/apps/documenteditor/mobile/app/controller/Main.js
index 8e7d4837d..deed7d300 100644
--- a/apps/documenteditor/mobile/app/controller/Main.js
+++ b/apps/documenteditor/mobile/app/controller/Main.js
@@ -761,6 +761,8 @@ define([
                 if (me.api) {
                     me.api.asc_registerCallback('asc_onSendThemeColors', _.bind(me.onSendThemeColors, me));
                     me.api.asc_registerCallback('asc_onDownloadUrl',     _.bind(me.onDownloadUrl, me));
+                    me.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(me.onAuthParticipantsChanged, me));
+                    me.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(me.onAuthParticipantsChanged, me));
                 }
             },
 
@@ -778,8 +780,6 @@ define([
                     /** coauthoring begin **/
                     me.api.asc_registerCallback('asc_onCollaborativeChanges',    _.bind(me.onCollaborativeChanges, me));
                     me.api.asc_registerCallback('asc_OnTryUndoInFastCollaborative',_.bind(me.onTryUndoInFastCollaborative, me));
-                    me.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(me.onAuthParticipantsChanged, me));
-                    me.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(me.onAuthParticipantsChanged, me));
                     /** coauthoring end **/
 
                     if (me.stackLongActions.exist({id: ApplyEditRights, type: Asc.c_oAscAsyncActionType['BlockInteraction']})) {
@@ -795,6 +795,10 @@ define([
                 }
             },
 
+            returnUserCount: function() {
+                return this._state.usersCount;
+            },
+
             onExternalMessage: function(msg) {
                 if (msg && msg.msg) {
                     msg.msg = (msg.msg).toString();
diff --git a/apps/documenteditor/mobile/app/controller/Settings.js b/apps/documenteditor/mobile/app/controller/Settings.js
index bf6192291..be2f7dcc9 100644
--- a/apps/documenteditor/mobile/app/controller/Settings.js
+++ b/apps/documenteditor/mobile/app/controller/Settings.js
@@ -253,6 +253,10 @@ define([
                     if(_stateDisplayMode == "Final" || _stateDisplayMode == "Original") {
                         $('#settings-document').addClass('disabled');
                     }
+                    var _userCount = DE.getController('Main').returnUserCount();
+                    if (_userCount > 0) {
+                        $('#settings-collaboration').show();
+                    }
                 }
             },
 
diff --git a/apps/documenteditor/mobile/app/controller/Toolbar.js b/apps/documenteditor/mobile/app/controller/Toolbar.js
index aaaaae553..1c32ee6c4 100644
--- a/apps/documenteditor/mobile/app/controller/Toolbar.js
+++ b/apps/documenteditor/mobile/app/controller/Toolbar.js
@@ -81,6 +81,8 @@ define([
                 this.api.asc_registerCallback('asc_onCanRedo',      _.bind(this.onApiCanRevert, this, 'redo'));
                 this.api.asc_registerCallback('asc_onFocusObject',  _.bind(this.onApiFocusObject, this));
                 this.api.asc_registerCallback('asc_onCoAuthoringDisconnect', _.bind(this.onCoAuthoringDisconnect, this));
+                this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.displayCollaboration, this))
+                this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.displayCollaboration, this));
                 Common.NotificationCenter.on('api:disconnect',      _.bind(this.onCoAuthoringDisconnect, this));
             },
 
@@ -192,6 +194,21 @@ define([
                 DE.getController('Settings').hideModal();
             },
 
+            displayCollaboration: function(users) {
+                if(users !== undefined) {
+                    var length = 0;
+                    _.each(users, function (item) {
+                        if (!item.asc_getView())
+                            length++;
+                    });
+                    if (length > 0) {
+                        $('#toolbar-collaboration').show();
+                    } else {
+                        $('#toolbar-collaboration').hide();
+                    }
+                }
+            },
+
             dlgLeaveTitleText   : 'You leave the application',
             dlgLeaveMsgText     : 'You have unsaved changes in this document. Click \'Stay on this Page\' to await the autosave of the document. Click \'Leave this Page\' to discard all the unsaved changes.',
             leaveButtonText     : 'Leave this Page',
diff --git a/apps/documenteditor/mobile/app/template/Settings.template b/apps/documenteditor/mobile/app/template/Settings.template
index 6cda2f06c..45a321b3d 100644
--- a/apps/documenteditor/mobile/app/template/Settings.template
+++ b/apps/documenteditor/mobile/app/template/Settings.template
@@ -57,7 +57,7 @@
                         <% } %>
                         <% if(phone) {%>
                         <li>
-                            <div id="settings-collaboration" class="item-content">
+                            <div id="settings-collaboration" class="item-content" style="display: none;">
                                 <div class="item-media">
                                     <i class="icon icon-collaboration"></i>
                                 </div>
diff --git a/apps/documenteditor/mobile/app/template/Toolbar.template b/apps/documenteditor/mobile/app/template/Toolbar.template
index 83f164f25..345205710 100644
--- a/apps/documenteditor/mobile/app/template/Toolbar.template
+++ b/apps/documenteditor/mobile/app/template/Toolbar.template
@@ -43,7 +43,7 @@
             </a>
             <% } %>
             <% if (!phone) { %>
-            <a href="#" id="toolbar-collaboration" class="link icon-only disabled">
+            <a href="#" id="toolbar-collaboration" class="link icon-only disabled" style="display: none;">
                 <i class="icon icon-collaboration"></i>
             </a>
             <% } %>
diff --git a/apps/presentationeditor/mobile/app/controller/Main.js b/apps/presentationeditor/mobile/app/controller/Main.js
index 1f281b0fe..c3ca9ef5c 100644
--- a/apps/presentationeditor/mobile/app/controller/Main.js
+++ b/apps/presentationeditor/mobile/app/controller/Main.js
@@ -703,6 +703,8 @@ define([
                 if (me.api) {
                     me.api.asc_registerCallback('asc_onSendThemeColors', _.bind(me.onSendThemeColors, me));
                     me.api.asc_registerCallback('asc_onDownloadUrl',     _.bind(me.onDownloadUrl, me));
+                    me.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(me.onAuthParticipantsChanged, me));
+                    me.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(me.onAuthParticipantsChanged, me));
                 }
             },
 
@@ -725,8 +727,6 @@ define([
                     /** coauthoring begin **/
                     me.api.asc_registerCallback('asc_onCollaborativeChanges',    _.bind(me.onCollaborativeChanges, me));
                     me.api.asc_registerCallback('asc_OnTryUndoInFastCollaborative',_.bind(me.onTryUndoInFastCollaborative, me));
-                    me.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(me.onAuthParticipantsChanged, me));
-                    me.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(me.onAuthParticipantsChanged, me));
                     /** coauthoring end **/
 
                     if (me.stackLongActions.exist({id: ApplyEditRights, type: Asc.c_oAscAsyncActionType['BlockInteraction']})) {
@@ -1153,6 +1153,10 @@ define([
                 this._state.usersCount = length;
             },
 
+            returnUserCount: function() {
+                return this._state.usersCount;
+            },
+
             onDocumentName: function(name) {
 //                this.getApplication().getController('Viewport').getView('Common.Views.Header').setDocumentCaption(name);
                 this.updateWindowTitle(true);
diff --git a/apps/presentationeditor/mobile/app/controller/Settings.js b/apps/presentationeditor/mobile/app/controller/Settings.js
index 2cb3a7836..14050c3e0 100644
--- a/apps/presentationeditor/mobile/app/controller/Settings.js
+++ b/apps/presentationeditor/mobile/app/controller/Settings.js
@@ -165,6 +165,11 @@ define([
                 $('#settings-print').single('click',                        _.bind(me._onPrint, me));
                 $('#settings-collaboration').single('click',                _.bind(me.onCollaboration, me));
 
+                var _userCount = PE.getController('Main').returnUserCount();
+                if (_userCount > 0) {
+                    $('#settings-collaboration').show();
+                }
+
                 Common.Utils.addScrollIfNeed('.page[data-page=settings-setup-view]', '.page[data-page=settings-setup-view] .page-content');
                 Common.Utils.addScrollIfNeed('.page[data-page=settings-download-view]', '.page[data-page=settings-download-view] .page-content');
                 Common.Utils.addScrollIfNeed('.page[data-page=settings-info-view]', '.page[data-page=settings-info-view] .page-content');
diff --git a/apps/presentationeditor/mobile/app/controller/Toolbar.js b/apps/presentationeditor/mobile/app/controller/Toolbar.js
index 41cb5bc68..1f268a8a5 100644
--- a/apps/presentationeditor/mobile/app/controller/Toolbar.js
+++ b/apps/presentationeditor/mobile/app/controller/Toolbar.js
@@ -80,6 +80,8 @@ define([
                 this.api.asc_registerCallback('asc_onCanRedo',  _.bind(this.onApiCanRevert, this, 'redo'));
                 this.api.asc_registerCallback('asc_onFocusObject',  _.bind(this.onApiFocusObject, this));
                 this.api.asc_registerCallback('asc_onCoAuthoringDisconnect', _.bind(this.onCoAuthoringDisconnect, this));
+                this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.displayCollaboration, this))
+                this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.displayCollaboration, this));
                 Common.NotificationCenter.on('api:disconnect',      _.bind(this.onCoAuthoringDisconnect, this));
             },
 
@@ -196,6 +198,21 @@ define([
                 PE.getController('Settings').hideModal();
             },
 
+            displayCollaboration: function(users) {
+                if(users !== undefined) {
+                    var length = 0;
+                    _.each(users, function (item) {
+                        if (!item.asc_getView())
+                            length++;
+                    });
+                    if (length > 0) {
+                        $('#toolbar-collaboration').show();
+                    } else {
+                        $('#toolbar-collaboration').hide();
+                    }
+                }
+            },
+
             dlgLeaveTitleText   : 'You leave the application',
             dlgLeaveMsgText     : 'You have unsaved changes in this document. Click \'Stay on this Page\' to await the autosave of the document. Click \'Leave this Page\' to discard all the unsaved changes.',
             leaveButtonText     : 'Leave this Page',
diff --git a/apps/presentationeditor/mobile/app/template/Settings.template b/apps/presentationeditor/mobile/app/template/Settings.template
index 7c5f7e76d..9bb3f9d98 100644
--- a/apps/presentationeditor/mobile/app/template/Settings.template
+++ b/apps/presentationeditor/mobile/app/template/Settings.template
@@ -27,7 +27,7 @@
                         <% } %>
                         <% if(phone) {%>
                         <li>
-                            <div id="settings-collaboration" class="item-content">
+                            <div id="settings-collaboration" class="item-content" style="display: none;">
                                 <div class="item-media">
                                     <i class="icon icon-collaboration"></i>
                                 </div>
diff --git a/apps/presentationeditor/mobile/app/template/Toolbar.template b/apps/presentationeditor/mobile/app/template/Toolbar.template
index 74cefedf1..4df183978 100644
--- a/apps/presentationeditor/mobile/app/template/Toolbar.template
+++ b/apps/presentationeditor/mobile/app/template/Toolbar.template
@@ -46,7 +46,7 @@
             </a>
             <% } %>
             <% if (!phone) { %>
-            <a href="#" id="toolbar-collaboration" class="link icon-only disabled">
+            <a href="#" id="toolbar-collaboration" class="link icon-only disabled" style="display: none;">
                 <i class="icon icon-collaboration"></i>
             </a>
             <% } %>
diff --git a/apps/spreadsheeteditor/mobile/app/controller/Main.js b/apps/spreadsheeteditor/mobile/app/controller/Main.js
index bd41da9b2..95d569d29 100644
--- a/apps/spreadsheeteditor/mobile/app/controller/Main.js
+++ b/apps/spreadsheeteditor/mobile/app/controller/Main.js
@@ -715,6 +715,8 @@ define([
                     me.api.asc_registerCallback('asc_onSendThemeColors', _.bind(me.onSendThemeColors, me));
                     me.api.asc_registerCallback('asc_onDownloadUrl',     _.bind(me.onDownloadUrl, me));
                 }
+                me.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(me.onAuthParticipantsChanged, me));
+                me.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(me.onAuthParticipantsChanged, me));
             },
 
             applyModeEditorElements: function() {
@@ -729,8 +731,6 @@ define([
                     /** coauthoring begin **/
                     me.api.asc_registerCallback('asc_onCollaborativeChanges',    _.bind(me.onCollaborativeChanges, me));
                     me.api.asc_registerCallback('asc_OnTryUndoInFastCollaborative',_.bind(me.onTryUndoInFastCollaborative, me));
-                    me.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(me.onAuthParticipantsChanged, me));
-                    me.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(me.onAuthParticipantsChanged, me));
                     /** coauthoring end **/
                     if (me.appOptions.isEditDiagram)
                         me.api.asc_registerCallback('asc_onSelectionChanged',        _.bind(me.onSelectionChanged, me));
@@ -1335,6 +1335,10 @@ define([
                 this._state.usersCount = length;
             },
 
+            returnUserCount: function() {
+                return this._state.usersCount;
+            },
+
             applySettings: function() {
                 if (this.appOptions.isEdit && this.appOptions.canLicense && !this.appOptions.isOffline && this.appOptions.canCoAuthoring) {
                     var value = Common.localStorage.getItem("sse-settings-coauthmode"),
diff --git a/apps/spreadsheeteditor/mobile/app/controller/Settings.js b/apps/spreadsheeteditor/mobile/app/controller/Settings.js
index 9e6020d3e..c2985e259 100644
--- a/apps/spreadsheeteditor/mobile/app/controller/Settings.js
+++ b/apps/spreadsheeteditor/mobile/app/controller/Settings.js
@@ -205,6 +205,11 @@ define([
                     me.initSpreadsheetPageSize();
                 } else if ('#margins-view' == pageId) {
                     me.initSpreadsheetMargins();
+                } else {
+                    var _userCount = SSE.getController('Main').returnUserCount();
+                    if (_userCount > 0) {
+                        $('#settings-collaboration').show();
+                    }
                 }
             },
 
diff --git a/apps/spreadsheeteditor/mobile/app/controller/Toolbar.js b/apps/spreadsheeteditor/mobile/app/controller/Toolbar.js
index 162380c2c..8f0ab5c36 100644
--- a/apps/spreadsheeteditor/mobile/app/controller/Toolbar.js
+++ b/apps/spreadsheeteditor/mobile/app/controller/Toolbar.js
@@ -87,6 +87,8 @@ define([
                 this.api.asc_registerCallback('asc_onWorksheetLocked', _.bind(this.onApiWorksheetLocked, this));
                 this.api.asc_registerCallback('asc_onActiveSheetChanged', _.bind(this.onApiActiveSheetChanged, this));
                 this.api.asc_registerCallback('asc_onCoAuthoringDisconnect', _.bind(this.onCoAuthoringDisconnect, this));
+                this.api.asc_registerCallback('asc_onAuthParticipantsChanged', _.bind(this.displayCollaboration, this))
+                this.api.asc_registerCallback('asc_onParticipantsChanged',     _.bind(this.displayCollaboration, this));
                 Common.NotificationCenter.on('api:disconnect',      _.bind(this.onCoAuthoringDisconnect, this));
 
                 Common.NotificationCenter.on('sheet:active', this.onApiActiveSheetChanged.bind(this));
@@ -219,6 +221,21 @@ define([
                 SSE.getController('Settings').hideModal();
             },
 
+            displayCollaboration: function(users) {
+                if(users !== undefined) {
+                    var length = 0;
+                    _.each(users, function (item) {
+                        if (!item.asc_getView())
+                            length++;
+                    });
+                    if (length > 0) {
+                        $('#toolbar-collaboration').show();
+                    } else {
+                        $('#toolbar-collaboration').hide();
+                    }
+                }
+            },
+
             dlgLeaveTitleText   : 'You leave the application',
             dlgLeaveMsgText     : 'You have unsaved changes in this document. Click \'Stay on this Page\' to await the autosave of the document. Click \'Leave this Page\' to discard all the unsaved changes.',
             leaveButtonText     : 'Leave this Page',
diff --git a/apps/spreadsheeteditor/mobile/app/template/Settings.template b/apps/spreadsheeteditor/mobile/app/template/Settings.template
index 8d23c6732..1faba16e0 100644
--- a/apps/spreadsheeteditor/mobile/app/template/Settings.template
+++ b/apps/spreadsheeteditor/mobile/app/template/Settings.template
@@ -27,7 +27,7 @@
                         <% } %>
                         <% if(phone) {%>
                         <li>
-                            <div id="settings-collaboration" class="item-content">
+                            <div id="settings-collaboration" class="item-content" style="display: none;">
                                 <div class="item-media">
                                     <i class="icon icon-collaboration"></i>
                                 </div>
diff --git a/apps/spreadsheeteditor/mobile/app/template/Toolbar.template b/apps/spreadsheeteditor/mobile/app/template/Toolbar.template
index 83f164f25..345205710 100644
--- a/apps/spreadsheeteditor/mobile/app/template/Toolbar.template
+++ b/apps/spreadsheeteditor/mobile/app/template/Toolbar.template
@@ -43,7 +43,7 @@
             </a>
             <% } %>
             <% if (!phone) { %>
-            <a href="#" id="toolbar-collaboration" class="link icon-only disabled">
+            <a href="#" id="toolbar-collaboration" class="link icon-only disabled" style="display: none;">
                 <i class="icon icon-collaboration"></i>
             </a>
             <% } %>