diff --git a/MasKit/Commands/Ls.swift b/MasKit/Commands/Ls.swift
new file mode 100644
index 000000000..74268ec96
--- /dev/null
+++ b/MasKit/Commands/Ls.swift
@@ -0,0 +1,47 @@
+//
+//  List.swift
+//  mas-cli
+//
+//  Created by Andrew Naylor on 21/08/2015.
+//  Copyright (c) 2015 Andrew Naylor. All rights reserved.
+//
+
+import Commandant
+
+/// Command which lists all installed apps.
+public struct ListCommand: CommandProtocol {
+    public typealias Options = NoOptions<MASError>
+    public let verb = "ls"
+    public let function = "Lists apps from the Mac App Store which are currently installed"
+
+    private let appLibrary: AppLibrary
+
+    /// Public initializer.
+    /// - Parameter appLibrary: AppLibrary manager.
+    public init() {
+        self.init(appLibrary: MasAppLibrary())
+    }
+
+    /// Internal initializer.
+    /// - Parameter appLibrary: AppLibrary manager.
+    init(appLibrary: AppLibrary = MasAppLibrary()) {
+        self.appLibrary = appLibrary
+    }
+
+    /// Runs the command.
+    public func run(_: Options) -> Result<(), MASError> {
+        let products = appLibrary.installedApps
+        if products.isEmpty {
+            print("No installed apps found")
+            return .success(())
+        }
+        for product in products {
+            var appName = product.appName
+            if appName == "" {
+                appName = product.bundleIdentifier
+            }
+            print("\(product.itemIdentifier) \(appName) (\(product.bundleVersion))")
+        }
+        return .success(())
+    }
+}
diff --git a/mas/main.swift b/mas/main.swift
index eca8fa980..bef442c34 100644
--- a/mas/main.swift
+++ b/mas/main.swift
@@ -26,6 +26,7 @@ registry.register(InstallCommand())
 registry.register(ICommand())
 registry.register(PurchaseCommand())
 registry.register(ListCommand())
+registry.register(LsCommand())
 registry.register(LuckyCommand())
 registry.register(OpenCommand())
 registry.register(OutdatedCommand())