diff --git a/aws-android-sdk-cognitoauth/src/main/java/com/amazonaws/mobileconnectors/cognitoauth/Auth.java b/aws-android-sdk-cognitoauth/src/main/java/com/amazonaws/mobileconnectors/cognitoauth/Auth.java
index 1f805192f8..334352b9c7 100644
--- a/aws-android-sdk-cognitoauth/src/main/java/com/amazonaws/mobileconnectors/cognitoauth/Auth.java
+++ b/aws-android-sdk-cognitoauth/src/main/java/com/amazonaws/mobileconnectors/cognitoauth/Auth.java
@@ -159,7 +159,6 @@ private Auth(final Context context,
         this.signOutRedirectUri = signOutRedirectUri;
         this.scopes = scopes;
         this.user = new AuthClient(context, this);
-        this.user = new AuthClient(context, this);
         this.user.setUserHandler(userHandler);
         this.userPoolId = userPoolId;
         this.advancedSecurityDataCollectionFlag = advancedSecurityDataCollectionFlag;
@@ -655,4 +654,11 @@ public Auth setUsername(final String username) {
         this.user.setUsername(username);
         return this;
     }
+
+    /**
+     * Release resources used by {@link Auth}
+     */
+    public void release() {
+        this.user.unbindServiceConnection();
+    }
 }
diff --git a/aws-android-sdk-cognitoauth/src/main/java/com/amazonaws/mobileconnectors/cognitoauth/AuthClient.java b/aws-android-sdk-cognitoauth/src/main/java/com/amazonaws/mobileconnectors/cognitoauth/AuthClient.java
index 0e222883a4..d9d2586b2a 100644
--- a/aws-android-sdk-cognitoauth/src/main/java/com/amazonaws/mobileconnectors/cognitoauth/AuthClient.java
+++ b/aws-android-sdk-cognitoauth/src/main/java/com/amazonaws/mobileconnectors/cognitoauth/AuthClient.java
@@ -221,6 +221,15 @@ public void getTokens(final Uri uri) {
         getTokens(uri, userHandler);
     }
 
+
+    /**
+     * Unbind {@link AuthClient#mCustomTabsServiceConnection}
+     */
+    public void unbindServiceConnection() {
+        if(mCustomTabsServiceConnection != null)
+            context.unbindService(mCustomTabsServiceConnection);
+    }
+
     /**
      * Internal method to exchange code for tokens.
      * <p>