diff --git a/README.md b/README.md
index 1f03244..b8cbf20 100644
--- a/README.md
+++ b/README.md
@@ -152,6 +152,22 @@ If your app is only avaiable for some coutnries, please add country code at Setu
     }
 ```
 
+## App ID
+
+Optional, you can set App ID explicitly. If not, SwiftRater will get App ID from appstore by bundle ID.
+
+```
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
+        SwiftRater.daysUntilPrompt = 7
+        SwiftRater.usesUntilPrompt = 10
+
+        SwiftRater.appID = "1104775712"
+
+        SwiftRater.debugMode = true
+        SwiftRater.appLaunched()
+        return true
+    }
+```
 ## Demo
 
 You can find Demo app in this repo.
diff --git a/SwiftRater.podspec b/SwiftRater.podspec
index 1c8786c..557129c 100644
--- a/SwiftRater.podspec
+++ b/SwiftRater.podspec
@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'SwiftRater'
-  s.version          = '1.7.0'
+  s.version          = '1.8.0'
   s.summary          = 'A utility that reminds your iPhone app users to review the app written in pure Swift.'
 
 # This description is used to generate tags and improve search results.