diff --git a/client/main.cpp b/client/main.cpp
index 0991144e..327837df 100644
--- a/client/main.cpp
+++ b/client/main.cpp
@@ -38,6 +38,7 @@
 #include "QZXing.h"
 
 #include "platforms/ios/QRCodeReaderBase.h"
+#include "platforms/ios/MobileUtils.h"
 
 #include "debug.h"
 #include "defines.h"
@@ -143,22 +144,23 @@ int main(int argc, char *argv[])
         return 0;
     }
 
-    QSettings oldSettings(ORGANIZATION_NAME, APPLICATION_NAME);
-    if (!oldSettings.allKeys().isEmpty()) {
-        QSettings newSettingsForPath(QSettings::Format::CustomFormat1, QSettings::UserScope,
-                                     ORGANIZATION_NAME, APPLICATION_NAME);
-        QString oldSettingsFileName = oldSettings.fileName();
-        QString newSettingsFileName = newSettingsForPath.fileName();
-
-        qDebug() << "New config removed:" << QFile::remove(newSettingsFileName);
-        QSettings newSettings(newSettingsFileName, QSettings::Format::NativeFormat);
-        SecureFormat::chiperSettings(oldSettings, newSettings);
-
+//    QSettings oldSettings(ORGANIZATION_NAME, APPLICATION_NAME);
+//    if (!oldSettings.allKeys().isEmpty()) {
+//        QSettings newSettings(QSettings::Format::CustomFormat1, QSettings::SystemScope,
+//                              ORGANIZATION_NAME, APPLICATION_NAME);
+//        QString oldSettingsFileName = oldSettings.fileName();
+//        QString newSettingsFileName = newSettings.fileName();
 //        qDebug() << "oldSettingsFileName:" << oldSettingsFileName;
 //        qDebug() << "newSettingsFileName:" << newSettingsFileName;
-//        qDebug() << "Old config copied:" << QFile::copy(oldSettingsFileName, newSettingsFileName);
-////        qDebug() << "Old config removed:" << QFile::remove(oldSettingsFileName);
-    }
+
+//        qDebug() << "New config removed:" << QFile::remove(newSettingsFileName);
+//        SecureFormat::chiperSettings(oldSettings, newSettings);
+////        qDebug() << "Old config copied:" << QFile::copy(oldSettingsFileName, newSettingsFileName);
+//////        qDebug() << "Old config removed:" << QFile::remove(oldSettingsFileName);
+//    }
+
+    MobileUtils::writeToKeychain("testKey", "12345");
+    qDebug() << "MobileUtils::readFromKeychain(\"testKey\"):" << MobileUtils::readFromKeychain("testKey");
 
     Settings settings;
 
diff --git a/client/platforms/ios/MobileUtils.cpp b/client/platforms/ios/MobileUtils.cpp
index 31b58c94..771e7855 100644
--- a/client/platforms/ios/MobileUtils.cpp
+++ b/client/platforms/ios/MobileUtils.cpp
@@ -1,10 +1,6 @@
 #include "MobileUtils.h"
 
-MobileUtils::MobileUtils()
-{
+void MobileUtils::shareText(const QStringList&) {}
 
-}
-
-void MobileUtils::shareText(const QStringList& filesToSend) {
-
-}
+void MobileUtils::writeToKeychain(const QString&, const QString&) {}
+QString MobileUtils::readFromKeychain(const QString&) { return {}; }
diff --git a/client/platforms/ios/MobileUtils.h b/client/platforms/ios/MobileUtils.h
index 42aa4031..49fcdce0 100644
--- a/client/platforms/ios/MobileUtils.h
+++ b/client/platforms/ios/MobileUtils.h
@@ -12,6 +12,9 @@ public:
 
 public slots:
     static void shareText(const QStringList& filesToSend);
+
+    static void writeToKeychain(const QString& tag, const QString& value);
+    static QString readFromKeychain(const QString& tag);
 };
 
 #endif // MOBILEUTILS_H
diff --git a/client/platforms/ios/MobileUtils.mm b/client/platforms/ios/MobileUtils.mm
index 94c7c775..658309e3 100644
--- a/client/platforms/ios/MobileUtils.mm
+++ b/client/platforms/ios/MobileUtils.mm
@@ -1,6 +1,9 @@
 #include "MobileUtils.h"
 
 #include <UIKit/UIKit.h>
+#include <Security/Security.h>
+
+#include <QDebug>
 
 static UIViewController* getViewController() {
     NSArray *windows = [[UIApplication sharedApplication]windows];
@@ -31,3 +34,62 @@ void MobileUtils::shareText(const QStringList& filesToSend) {
         popController.sourceView = qtController.view;
     }
 }
+
+bool deleteFromKeychain(const QString& tag) {
+    NSData* nsTag = [tag.toNSString() dataUsingEncoding:NSUTF8StringEncoding];
+    NSDictionary *deleteQuery = @{ (id)kSecClass: (id)kSecClassKey,
+                                   (id)kSecAttrApplicationTag: nsTag,
+                                 };
+
+    OSStatus status = SecItemDelete((__bridge CFDictionaryRef)deleteQuery);
+    if (status != errSecSuccess) {
+        qDebug() << "Error deleteFromKeychain" << status;
+        return false;
+    } else {
+        qDebug() << "OK deleteFromKeychain";
+        return true;
+    }
+}
+
+void MobileUtils::writeToKeychain(const QString& tag, const QString& value) {
+    deleteFromKeychain(tag);
+
+    NSData* nsValue = [value.toNSString() dataUsingEncoding:NSUTF8StringEncoding];
+    NSData* nsTag = [tag.toNSString() dataUsingEncoding:NSUTF8StringEncoding];
+    NSDictionary* addQuery = @{ (id)kSecValueData: nsValue,
+                                (id)kSecClass: (id)kSecClassKey,
+                                (id)kSecAttrApplicationTag: nsTag,
+                              };
+
+    OSStatus status = SecItemAdd((__bridge CFDictionaryRef)addQuery, NULL);
+    if (status != errSecSuccess) {
+        qDebug() << "Error writeToKeychain" << status;
+    } else {
+        qDebug() << "OK writeToKeychain";
+    }
+}
+
+QString MobileUtils::readFromKeychain(const QString& tag) {
+    NSData* nsValue = NULL;
+    NSData* nsTag = [tag.toNSString() dataUsingEncoding:NSUTF8StringEncoding];
+    NSDictionary *getQuery = @{ (id)kSecReturnData: @YES,
+                                (id)kSecClass: (id)kSecClassKey,
+                                (id)kSecAttrApplicationTag: nsTag,
+                              };
+    
+    OSStatus status = SecItemCopyMatching((__bridge CFDictionaryRef)getQuery,
+                                          (CFTypeRef *)&nsValue);
+    if (status != errSecSuccess) {
+        qDebug() << "Error readFromKeychain" << status;
+    } else {
+        qDebug() << "OK readFromKeychain" << nsValue;
+    }
+
+    QString result;
+    if (nsValue) {
+        result = QByteArray::fromNSData(nsValue);
+        CFRelease(nsValue);
+    }
+    
+    return result;
+}