diff --git a/Facepunch.Steamworks/Client.cs b/Facepunch.Steamworks/Client.cs
index 3733bea..1264d4b 100644
--- a/Facepunch.Steamworks/Client.cs
+++ b/Facepunch.Steamworks/Client.cs
@@ -1,4 +1,5 @@
 using System;
+using System.IO;
 using System.Runtime.InteropServices;
 
 namespace Facepunch.Steamworks
@@ -15,13 +16,29 @@ public partial class Client : BaseSteamworks
         /// </summary>
         public ulong SteamId { get; private set; }
 
+        /// <summary>
+        /// If we're sharing this game, this is the owner of it.
+        /// </summary>
+        public ulong OwnerSteamId { get; private set; }
+
         /// <summary>
         /// Current Beta name, if we're using a beta branch.
         /// </summary>
         public string BetaName { get; private set; }
 
+        /// <summary>
+        /// The BuildId of the current build 
+        /// </summary>
+        public int BuildId { get; private set; }
+
+        /// <summary>
+        /// The folder in which this app is installed
+        /// </summary>
+        public DirectoryInfo InstallFolder { get; private set; }
+
         public Voice Voice { get; private set; }
         public ServerList ServerList { get; private set; }
+        public App App { get; private set; }
 
         public Client( uint appId )
         {
@@ -47,6 +64,7 @@ public Client( uint appId )
             //
             Voice = new Voice( this );
             ServerList = new ServerList( this );
+            App = new App( this );
 
             Workshop.friends = Friends;
 
@@ -58,6 +76,9 @@ public Client( uint appId )
             Username = native.friends.GetPersonaName();
             SteamId = native.user.GetSteamID();
             BetaName = native.apps.GetCurrentBetaName();
+            OwnerSteamId = native.apps.GetAppOwner();
+            InstallFolder = new DirectoryInfo( native.apps.GetAppInstallDir( AppId ) );
+            BuildId = native.apps.GetAppBuildId();
 
             //
             // Run update, first call does some initialization
@@ -104,6 +125,12 @@ public override void Dispose()
                 ServerList = null;
             }
 
+            if ( App != null )
+            {
+                App.Dispose();
+                App = null;
+            }
+
             base.Dispose();
         }
 
@@ -129,5 +156,27 @@ public Leaderboard GetLeaderboard( string name, LeaderboardSortMethod sortMethod
             native.userstats.FindOrCreateLeaderboard( name, (SteamNative.LeaderboardSortMethod)sortMethod, (SteamNative.LeaderboardDisplayType)displayType, board.OnBoardCreated );
             return board;
         }
+
+
+        /// <summary>
+        /// True if we're subscribed/authorised to be running this app
+        /// </summary>
+        public bool IsSubscribed => native.apps.BIsSubscribed();
+
+        /// <summary>
+        /// True if we're a cybercafe account
+        /// </summary>
+        public bool IsCybercafe => native.apps.BIsCybercafe();
+
+        /// <summary>
+        /// True if we're subscribed/authorised to be running this app, but only temporarily
+        /// due to a free weekend etc.
+        /// </summary>
+        public bool IsSubscribedFromFreeWeekend => native.apps.BIsSubscribedFromFreeWeekend();
+
+        /// <summary>
+        /// True if we're in low violence mode (germans are only allowed to see the insides of bodies in porn)
+        /// </summary>
+        public bool IsLowViolence => native.apps.BIsLowViolence();
     }
 }
diff --git a/Facepunch.Steamworks/Client/App.cs b/Facepunch.Steamworks/Client/App.cs
index c636b06..83a643f 100644
--- a/Facepunch.Steamworks/Client/App.cs
+++ b/Facepunch.Steamworks/Client/App.cs
@@ -5,23 +5,7 @@
 
 namespace Facepunch.Steamworks
 {
-    public partial class Client : IDisposable
-    {
-        App _app;
-
-        public App App
-        {
-            get
-            {
-                if ( _app == null )
-                    _app = new App( this );
-
-                return _app;
-            }
-        }
-    }
-
-    public class App
+    public class App : IDisposable
     {
         internal Client client;
 
@@ -30,23 +14,63 @@ internal App( Client c )
             client = c;
         }
 
+        public void Dispose()
+        {
+            client = null;
+        }
+
+        /// <summary>
+        /// Mark the content as corrupt, so it will validate the downloaded files
+        /// once the app is closed. This is good to call when you detect a crash happening
+        /// or a file is missing that is meant to be there.
+        /// </summary>
         public void MarkContentCorrupt( bool missingFilesOnly = false )
         {
             client.native.apps.MarkContentCorrupt( missingFilesOnly );
         }
 
         /// <summary>
-        /// Returns the current BuildId of the game. 
-        /// This is pretty useless, as it isn't guarenteed to return
-        /// the build id you're playing, or the latest build id.
+        /// Tell steam to install the Dlc specified by the AppId
         /// </summary>
-        public int BuildId
+        public void InstallDlc( uint appId )
         {
-            get
-            {
-                return client.native.apps.GetAppBuildId();
-            }
+            client.native.apps.InstallDLC( appId );
         }
 
+        /// <summary>
+        /// Tell steam to uninstall the Dlc specified by the AppId
+        /// </summary>
+        public void UninstallDlc(uint appId)
+        {
+            client.native.apps.UninstallDLC( appId );
+        }
+
+        /// <summary>
+        /// Get the purchase time for this appid. Will return DateTime.MinValue if none.
+        /// </summary>
+        public DateTime PurchaseTime(uint appId)
+        {
+            var time = client.native.apps.GetEarliestPurchaseUnixTime(appId);
+            if ( time == 0 ) return DateTime.MinValue;
+
+            return Utility.Epoch.ToDateTime( time );
+        }
+
+        /// <summary>
+        /// Returns true if this user is subscribed to the specific appid
+        /// ie. If the user owns this game specified.
+        /// </summary>
+        public bool IsSubscribed(uint appId)
+        {
+            return client.native.apps.BIsSubscribedApp(appId);
+        }
+
+        /// <summary>
+        /// Returns true if specified app is installed.
+        /// </summary>
+        public bool IsInstalled(uint appId)
+        {
+            return client.native.apps.BIsAppInstalled(appId);
+        }
     }
 }