diff --git a/storage/storage.cpp b/storage/storage.cpp
index 823ac194dd..22a4272c82 100644
--- a/storage/storage.cpp
+++ b/storage/storage.cpp
@@ -149,7 +149,7 @@ void Storage::RegisterAllLocalMaps()
   }
 }
 
-void Storage::GetLocalMaps(vector<CountryFile> & maps)
+void Storage::GetLocalMaps(vector<CountryFile> & maps) const
 {
   for (auto const & p : m_localFiles)
   {
@@ -160,6 +160,11 @@ void Storage::GetLocalMaps(vector<CountryFile> & maps)
     maps.push_back(p.second->GetCountryFile());
 }
 
+size_t Storage::GetDownloadedFilesCount() const
+{
+  return m_localFiles.size();
+}
+
 CountriesContainerT const & NodeFromIndex(CountriesContainerT const & root, TIndex const & index)
 {
   // complex logic to avoid [] out_of_bounds exceptions
diff --git a/storage/storage.hpp b/storage/storage.hpp
index 553e387f3e..8a448779c1 100644
--- a/storage/storage.hpp
+++ b/storage/storage.hpp
@@ -48,6 +48,7 @@ private:
 
   using TLocalFilePtr = shared_ptr<platform::LocalCountryFile>;
   map<TIndex, list<TLocalFilePtr>> m_localFiles;
+  // Our World.mwm and WorldCoasts.mwm are fake countries, together with any custom mwm in data folder.
   map<platform::CountryFile, TLocalFilePtr> m_localFilesForFakeCountries;
 
   /// used to correctly calculate total country download progress with more than 1 file
@@ -114,8 +115,10 @@ public:
   // *NOTE* storage will forget all already known local maps.
   void RegisterAllLocalMaps();
 
-  // Returns list of all local maps, including fake countries.
-  void GetLocalMaps(vector<platform::CountryFile> & maps);
+  // Returns list of all local maps, including fake countries (World*.mwm).
+  void GetLocalMaps(vector<platform::CountryFile> & maps) const;
+  // Returns number of downloaded maps (files), excluding fake countries (World*.mwm).
+  size_t GetDownloadedFilesCount() const;
 
   /// @return unique identifier that should be used with Unsubscribe function
   int Subscribe(TChangeCountryFunction const & change, TProgressFunction const & progress);