diff --git a/Rakefile b/Rakefile
index c459c35..583bc75 100644
--- a/Rakefile
+++ b/Rakefile
@@ -3,7 +3,6 @@ $:.unshift("/Library/RubyMotion/lib")
 require 'motion/project/template/ios'
 require 'bundler'
 Bundler.require(:development)
-require 'ProMotion'
 require 'ProMotion-iap'
 
 Motion::Project::App.setup do |app|
diff --git a/app/app_delegate.rb b/app/app_delegate.rb
index 6400a5d..de8a48d 100644
--- a/app/app_delegate.rb
+++ b/app/app_delegate.rb
@@ -1,5 +1,3 @@
-class AppDelegate < ProMotion::Delegate
+class AppDelegate
 
-  def on_load(app, options)
-  end
 end
diff --git a/lib/ProMotion/iap.rb b/lib/ProMotion/iap.rb
index 9e579f8..aa2f96e 100644
--- a/lib/ProMotion/iap.rb
+++ b/lib/ProMotion/iap.rb
@@ -2,7 +2,7 @@ module ProMotion
   module IAP
     attr_accessor :completion_handlers
 
-    def purchase_iap(product_id, &callback)
+    def purchase_iaps(product_id, &callback)
       iap_setup
       retrieve_iaps product_id do |products|
         products.each do |product|
@@ -12,6 +12,7 @@ def purchase_iap(product_id, &callback)
         end
       end
     end
+    alias purchase_iap purchase_iaps
 
     def restore_iaps(product_id, &callback)
       iap_setup
@@ -22,6 +23,7 @@ def restore_iaps(product_id, &callback)
         end
       end
     end
+    alias restore_iap restore_iaps
 
     def retrieve_iaps(*product_ids, &callback)
       iap_setup
@@ -76,6 +78,19 @@ def formatted_iap_price(price, price_locale)
       num_formatter.stringFromNumber price
     end
 
+    def iap_callback(status, transaction, finish=false)
+      product_id = transaction.payment.productIdentifier
+      if self.completion_handlers["purchase-#{product_id}"]
+        self.completion_handlers["purchase-#{product_id}"].call status, transaction
+        self.completion_handlers["purchase-#{product_id}"] = nil if finish
+      end
+      if self.completion_handlers["restore-#{product_id}"]
+        self.completion_handlers["restore-#{product_id}"].call status, transaction
+        self.completion_handlers["restore-#{product_id}"] = nil if finish
+      end
+      SKPaymentQueue.defaultQueue.finishTransaction(transaction) if finish
+    end
+
     public
 
     # SKProductsRequestDelegate methods
@@ -117,19 +132,6 @@ def paymentQueue(_, updatedTransactions:transactions)
       end
     end
 
-    def iap_callback(status, transaction, finish=false)
-      product_id = transaction.payment.productIdentifier
-      if self.completion_handlers["purchase-#{product_id}"]
-        self.completion_handlers["purchase-#{product_id}"].call status, transaction
-        self.completion_handlers["purchase-#{product_id}"] = nil if finish
-      end
-      if self.completion_handlers["restore-#{product_id}"]
-        self.completion_handlers["restore-#{product_id}"].call status, transaction
-        self.completion_handlers["restore-#{product_id}"] = nil if finish
-      end
-      SKPaymentQueue.defaultQueue.finishTransaction(transaction) if finish
-    end
-
   end
 end
 ::PM = ProMotion unless defined?(::PM)