diff --git a/README.md b/README.md
index 3d173ba..5337737 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,10 @@
 
 [Cronofy](https://www.cronofy.com) - one API for all the calendars (Google, iCloud, Exchange, Office 365, Outlook.com)
 
+## Sample Application
+
+To see this API wrapper in action see our sample app [here](https://github.com/cronofy/cronofy-php-sample-app)
+
 ## Usage
 
 In order to use the Cronofy API you will need to [create a developer account](https://app.cronofy.com/sign_up/new).
diff --git a/cronofy-oauthcallback.php b/cronofy-oauthcallback.php
deleted file mode 100644
index ab9847a..0000000
--- a/cronofy-oauthcallback.php
+++ /dev/null
@@ -1,33 +0,0 @@
-<?php
-require_once('cronofy.php');
-require_once('cronofy-usercreds.php');
-
-session_start();
-
-$state = $_GET['state'];
-$code = $_GET['code'];
-
-if((!empty($state)) && ($state!='#') && ($state != $_SESSION['state'])){
-    throw new Exception('Error validating state.  Possible cross-site request forgery.');
-}
-
-$params = array(
-	'redirect_uri' => $redirect_uri,
-	'code' => $code
-);
-
-$cronofy = new Cronofy($client_id, $client_secret);
-
-$token=$cronofy->request_token($client_id, $client_secret, $params);
-
-if($token != true){
-	echo $token;
-}else{
-	$_SESSION['access_token'] = $cronofy->access_token;
-	$_SESSION['refresh_token'] = $cronofy->refresh_token;
-}
-
-header('Location: ' . $data_uri);
-
-?>
-
diff --git a/cronofy-test.php b/cronofy-test.php
deleted file mode 100644
index d9a73b4..0000000
--- a/cronofy-test.php
+++ /dev/null
@@ -1,16 +0,0 @@
-<?php
-require_once('cronofy.php');
-require_once('cronofy-usercreds.php');
-
-session_start();
-
-$cronofy = new Cronofy($client_id);
-
-$params = array(
-	'redirect_uri' => $redirect_uri,
-	'scope' => array('read_account','list_calendars','read_events','create_event','delete_event')
-);
-$auth = $cronofy->getAuthorizationURL($client_id, $params);
-
-var_dump($auth);
-?>
diff --git a/cronofy-test2.php b/cronofy-test2.php
deleted file mode 100644
index c9c57bc..0000000
--- a/cronofy-test2.php
+++ /dev/null
@@ -1,46 +0,0 @@
-<?php
-require_once('cronofy.php');
-require_once('cronofy-usercreds.php');
-
-session_start();
-
-$access_token = $_SESSION['access_token'];
-$refresh_token = $_SESSION['refresh_token'];
-
-
-$cronofy = new Cronofy($client_id, $client_secret, $access_token, $refresh_token);
-
-//$revoke = $cronofy->revoke_authorization($client_id, $client_secret, $access_token);
-
-//$calendar = $cronofy->list_calendars();
-
-/*$params = array(
-	'tzid' => 'Europe/London',
-);
-$events = $cronofy->read_events($params);
-var_dump($events);
-*/
-/*$params = array(
-	'calendar_id' => 'cal_VmTnwPV9On8LACpZ_nI0xvz0g0hmyKHvKpxAWYA',
-	'event_id' => 'event_test_12345679',
-	'summary' => 'test event 2',
-	'description' => 'some event data here',
-	'start' => '2015-12-07T09:00:00Z',
-	'end' => '2015-12-08T10:00:00Z'
-	
-);
-$new_event = $cronofy->upsert_event($params);
-
-var_dump($new_event);
-*/
-
-/*$params = array(
-	'calendar_id' => 'cal_VmTnwPV9On8LACpZ_nI0xvz0g0hmyKHvKpxAWYA',
-	'event_id' => 'evt_external_566561a8e7d68f801b8e8912'
-);
-
-$delete = $cronofy->delete_event($params);
-
-var_dump($delete);
-*/
-?>
\ No newline at end of file
diff --git a/cronofy-usercreds.php b/cronofy-usercreds.php
deleted file mode 100644
index c605032..0000000
--- a/cronofy-usercreds.php
+++ /dev/null
@@ -1,8 +0,0 @@
-<?php
-$client_id = '<the client ID for your application goes here>';
-$client_secret = '<the client secret for your application goes here>';
-
-$redirect_uri = "/cronofy-oauthcallback.php";
-$data_uri = "<This will be the page in the application that will access client-owned data>";
-
-?>
\ No newline at end of file