How do you add an in-app purchase to an iOS app? What are all the details and is there any sample code? 

&lt;sub&gt;**This is meant to be a catch-all of sorts for how to add in-app purchases to iOS apps**&lt;/sub&gt;

How do you add an in-app purchase to an iOS application?

I have read a lot of docs and code that in theory will validate an in-app and/or bundle receipt. 

Given that my knowledge of SSL, certificates, encryption, etc., is nearly zero, all of the explanations I have read, [like this promising one](https://github.com/rmaddy/VerifyStoreReceiptiOS), I have found difficult to understand.

They say the explanations are incomplete because every person has to figure out how to do it, or the hackers will have an easy job creating a cracker app that can recognize and identify patterns and patch the application. OK, I agree with this up to a certain point. I think they could explain completely how to do it and put a warning saying &quot;modify this method&quot;, &quot;modify this other method&quot;, &quot;obfuscate this variable&quot;, &quot;change the name of this and that&quot;, etc. 

Can some good soul out there be kind enough to explain **how to LOCALLY validate, bundle receipts and in-app purchase receipts on iOS 7** as I am five years old (ok, make it 3), from top to bottom, clearly?

Thanks!!!

_________________

If you have a version working on your apps and your concerns are that hackers will see how you did it, simply change your sensitive methods before publishing here. Obfuscate strings, change the order of lines, change the way you do loops (from using for to block enumeration and vice-versa) and things like that. Obviously, every person that uses the code that may be posted here, has to do the same thing, not to risk being easily hacked.



A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7

I am trying to set up in-app purchases but I don&#39;t know how to get rid of the &quot;Missing Metadata&quot; shown below.

The only yellow dot I see from the page is the &quot;Localizations&quot; section, but I completed the &quot;Display Name&quot; and &quot;Description&quot;.

I don&#39;t know what else I can do or what I am doing wrong.

![Missing Metadata (yellow dot)][1]

---

![Missing Metadata (yellow dot)][2]


  [1]: https://i.stack.imgur.com/XW1Dl.png
  [2]: https://i.stack.imgur.com/NydPH.png

In-App Purchases stuck in &quot;Missing Metadata&quot; state

I have a simple app (needs user login with account). I provide some premium features for paid users, like more news content.

I need to record if the user has bought this item in my server database. When I provide data content to user&#39;s device, I can then check the user&#39;s status, and provide different content for paid user.

I checked the official Trivialdrive sample provided by Google, it does not provide any sample code for server-side verification, here are my questions.

 1. I found the sample use my app&#39;s public key inside to verify purchase, it looks not good, I think I can just move the verification process to my server combined with user login credentials to see whether the user purchase completed, and then update the database.
 2. Also there is [purchase API][1] I can use to query, what I need is to pass the user&#39;s purchaseToken into server.

I am not sure what method I should take to verify the user&#39;s purchase, and mark the user&#39;s status in my database, maybe both?

And I am afraid there is a situation, if a user bought this item from google play, but for some reason, just in that time, when my app launched verification to my server, **the network connection is down or my own server is down**, user just paid the money in google play but I did not record the purchase in my server? What should I do, How can I deal with this situation.


  [1]: http://developer.android.com/google/play/developer-api.html#subscriptions_api_overview

How to verify purchase for android app in server side (google play in app billing v3)

Does anyone have any ideas on how to reset and/or clear the iOS in-app purchase sandbox?

I have an app that I&#39;m testing with the sandbox, and I&#39;d like to test new purchases without having to create a new test user every time I purchase something.

If I don&#39;t do this, then I (of course) always get a message that the in-app purchase item has already been purchased when I click on my app&#39;s buy button.

Clearing purchases from iOS in-app purchase sandbox for a test user

I&#39;m trying to integrate Android Market in-app purchases into my app, but unfortunately coming across an annoying error every time I try to purchase a real inapp product.

I&#39;ve taken the sample application (Dungeons) and added it to my app. I&#39;ve updated the Public Key and also updated the list of products to the following:

/** An array of product list entries for the products that can be purchased. */

    private static final CatalogEntry[] CATALOG = new CatalogEntry[] {
        new CatalogEntry(&quot;full&quot;, &quot;Full v&quot;, Managed.MANAGED),
       
    };

I&#39;ve exported the application using Eclipse, and installed it on my phone and also uploaded it to the Android Market website. Also on the Android Market website I&#39;ve added full as an in-app purchase and published it.

I&#39;ve also added my googlemail account as a testing account (that is the one I&#39;m signed into on my phone).

When I run the application on my phone I get a the item you&#39;ve requested not available for purchase android message whenever I try to buy full, but if I try for example, android.test.purchased, it works absolutely fine.

The documentation for the item you&#39;ve requested not available for purchase android states the following:

Indicates that Android Market cannot find the requested item in the application&#39;s product list. This can happen if the product ID is misspelled in your REQUEST_PURCHASE request or if an item is unpublished in the application&#39;s product list.

The product ID is definetely the same, it&#39;s definetely published and the request must be going through ok as it&#39;s the sample application .

i am using same version of apk and i published inapp products also and activated apk also.
but still i am facing same problem please help me ho to fix it.

Any thoughts would be appreciated!

the item you requested is not available for purchase

I am using google wallet for my payment gateway, after purchasing the product google giving me a below response that

    { 
     &quot;orderId&quot;:&quot;12999763169054705758.1371079406387615&quot;, 
     &quot;packageName&quot;:&quot;com.example.app&quot;,
     &quot;productId&quot;:&quot;exampleSku&quot;,
     &quot;purchaseTime&quot;:1345678900000,
     &quot;purchaseState&quot;:0,
     &quot;developerPayload&quot;:&quot;bGoa+V7g/yqDXvKRqq+JTFn4uQZbPiQJo4pf9RzJ&quot;,
     &quot;purchaseToken&quot;:&quot;rojeslcdyyiapnqcynkjyyjh&quot;
     }

I am trying to make use of **Receipt Validation** that google play newly introduced.In Google Developer console I made **certificate key** by Service Account in the Permission. But I am confused how to make use of Receipt Validation after purchasing a Product from the Google Play-store.

So can anyone please help me how to do the **Receipt validation** of `InApp` Purchase.

Android : inApp purchase receipt validation google play

I am having problems testing my in-app purchases. I get back valid product identifiers, but upon purchase I receive the dreaded &quot;Cannot connect to iTunes Store&quot;. Interesting thing is that restore purchases seems to work - iTunes login pops up.

I have:
- Checked that my in-app purchases are cleared for sale
- Checked, rechecked my source code to be in sync with Apple&#39;s documentation
- Added appropiate test users
- app id does not contain wildcard
- in-app purchases are linked to the app (app itself is in developer rejected state, purchases are in ready to submit)
- waited
- reinstalled app, cleaned solution, all the voodoo stuff

&quot;Cannot connect to iTunes Store&quot; in-app purchases

I have an app in the App Store and I want to test in-app purchases. I followed the steps described on the [Apple website][1] but I&#39;m facing some problems.

When I try to log in in the iTunes in my application or in Settings/iTunes &amp; App Stores, I receive the error:

&gt; **iTunes account creation not allowed.**
&gt;
&gt; This Apple ID cannot be used with the iTunes Store at this time. Please try again later

I searched the internet but I found nothing about this. It seems like I am the first to encounter this kind of error.

[![itunes account creation not allowed][2]][2]


  [1]: https://developer.apple.com/library/ios/documentation/LanguagesUtilities/Conceptual/iTunesConnectInAppPurchase_Guide/Chapters/TestingInAppPurchases.html
  [2]: http://i.stack.imgur.com/kqrco.jpg

iTunes account creation not allowed when trying to test In-App Purchases

Since a couple of days it&#39;s possible to use in-app-billing in Android apps. Very cool of course. So, I started working on a update for my application to implement this. But now I run into some problems. This is what I did:

- I first tried the reserved product IDs for testing static in-app 
billing responses. That works without problems.
- I uploaded a draft APK to the market (with production signing, no debug signing), that included the com.android.vending.BILLING permission.
- When I did that I was able to add a &#39;In-app Products&#39; to my app in the market and set it status to published. 
- I created a test user and reseted my device to make that test user the primary account on my test device. 
- The reserved product id&#39;s still work.

Now comes the problem. When I use my own product ID (the one I added before, see above) a dialog is shown with the following text: 

&quot;**Application Error : This version of the application is not configured for Market Billing. Check the help center for more information.**&quot;

There is nothing strange I can find in the log. Anyone knows what I&#39;m doing wrong here? 

Application Error : This version of the application is not configured for Market Billing

I am working on adding In-App purchases to my app.

I am able to receive the `productsRequest:didReceiveResponse` method, and receive the array of products.

My problem arises when I add a *SKPayment* to the *SKPaymentQueue*. After I add the product to the queue, in the `paymentQueue:updatedTransactions` method the transactions always have the state **SKPaymentTransactionStateFailed**.

&gt; I NSLog the &quot;transaction.error&quot; and this is what it returns: Error
&gt; Domain=SKErrorDomain Code=0 UserInfo=0x165000 &quot;Cannot connect to
&gt; iTunes Store&quot;

I have logged out of the Store in the Settings app, but after trying to purchase a product in my app it never asks me to log in with my test account. It just fails with the above error.


iPhone Store Kit &quot;Cannot connect to iTunes Store&quot;

When posting an in-app purchase with Apple they ask for a screenshot to be included before going to review.

What kind of screenshots do they want?

My in-app purchase unlocks some of the lite version, I&#39;m not sure what Apple wants to see here.

iPhone in-app purchase screen shot

I have been facing a IN - App Purchase problem since long time. I need to integrate In-App functionality in my Android Application, but When I upload the APK file to the play store, it does not allow me to add SKU values. **To add in-app products, you need to add the BILLING permission to your APK**
I have been added  &quot;com.android.vending.BILLING&quot; permission in manifest file

&lt;br/&gt;1. I downloaded TRIVAL-DRIVER project.
&lt;br/&gt;2. Create a new library Project &quot;BILLLING LIBRARY&quot; with my Custom package name eg: Abc.xyz
&lt;br/&gt;3. Copy All UTLITY files ALONG .AIDL file[with default package name **com.android.vending.billing**]in my new Project
&lt;br/&gt;4. Gave Reference of that &quot;BILLING LIBRARY&quot; project to MY APPLICATION.
&lt;br/&gt;5. Create a signed APK fie and uploaded it to Play Store - [DRAFT]
&lt;br/&gt;6. *When I go to create SKU values, it gives me the message **&quot;To add in-app products, you need to add the BILLING permission to your APK.&quot;** and doesn&#39;t allow to add SKU values.*
&lt;br/&gt;
&lt;br/&gt;
Any suggestion or tips would be appreciated.


Android - In App Purchase - you need to add the BILLING permission to your APK

I am trying to verifying that an auto-renewable In App purchase has not expired server side (not on a device). 

I am using Apple&#39;s Grand Unified Receipt (iOS 7 style transactions). The response returned by Apple contains `in_app` and `latest_receipt_info` elements with an array of receipts. The `in_app` JSON element contains **LESS** receipts than `latest_receipt_info`. I was expecting both elements to contain the same number or receipts.

Also, I was expecting that the `in_app` element would contain ALL the receipts. However, it appears that `latest_receipt_info` actually contains all the receipts. Apple documentation seems to suggest to use `in_app` for finding a latest receipt. 

I am surprised to see the `latest_receipt_info` because Apple&#39;s Documentation state that this element is
*&quot;Only returned for iOS 6 style transaction receipts for auto-renewable subscriptions.&quot;* (not iOS 7+).

Which JSON element should I iterate to find the latest receipt for auto-renewable iOS 7 style transactions: `in_app` or `latest_receipt_info`?



Use in_app or latest_receipt_info for getting latest receipt for auto-renewable iOS 7 style transactions?

My app seems ready to get a &#39;real life&#39; test for an in-app purchase procedure on my device. However, I receive an &quot;The publisher cannot purchase this item&quot; error message in Play Store.
Now, how am I supposed to test this? I don&#39;t want to lose my phone&#39;s configuration by reinstalling it with a dummy account just for testing. 
In the Developer Console under &quot;Settings&quot;-&quot;License testing&quot;, I have added my email address under &quot;GMail accounts with testing access&quot;, but this doesn&#39;t change anything... maybe I missed some simple way, but right now it feels very confusing!


Testing in-app billing: &quot;The publisher cannot purchase this item&quot;

Trying to do some In App Purchase testing, so I created a sandbox tester on itunesconnect... but when I attempt to log in as that user on my device I get an error:

&gt; **Itunes Account creation not allowed**
&gt; 
&gt; The Apple ID cannot be used with the iTunes store at this time. Please
&gt; try again later.

If I put in the wrong password for the account I get an account rejection so its not a password typo.. this is happening for every test account I create... anyone have a clue what the hell is going on.. I cannot find any information on this anywhere.

Unable to log in with sandbox test users on device

I use `SwiftyStoreKit` to request In App Purchases and get only this error with iOS 13:

    Error: Optional(Error Domain=ASDErrorDomain Code=507 &quot;Error decoding object&quot; UserInfo={NSLocalizedDescription=Error decoding object, NSLocalizedFailureReason=Attempted to decode store response})

I cannot request information about the products, nor make purchases with a sand box account. However, it works fine in iOS 12.1 on my device. It does not work with the iPhone 11 simulator or an actual device with iOS 13.

I have found a lot, that the *Xcode 11 GM seed 1* beta simulator had this problem, but have not found a solution yet. I also tested it with the new released *Xcode 11 GM seed 2* version, but there was no fix for me.

Does anyone have a solution on how I can request and purchase In App Purchases again with iOS 13 installed?

Requesting an In App Purchase in iOS 13 fails

I currently have a paid app in the store. Apple have not allowed a &#39;lite&#39; version to be submitted as well, so I have no choice but to update the current paid version to a freemium (with in app purchase) model.  I have the problem of not loosing functionality for v1 users that have purchased the app the first time round.

Is there any way to determine if an application have been updated from a previously installed version so I can unlock the paid parts of the app?

Two similar questions (from a few months ago):

https://stackoverflow.com/questions/1575965/transition-an-existing-paid-for-app-to-free-version-with-in-app-purchase

https://stackoverflow.com/questions/2219868/iphone-upgrade-existing-paid-application-on-app-store-to-free-application-with

Convert existing iOS paid app to freemium model with in-app purchase

My app is using in-app purchases, and most of my users can purchase just fine without any problems. For these folks, my app downloads the content after the purchase succeeds and they are happy.

However, for a growing number of my users, once they complete a successful in-app purchase they are being asked for their App Store password every time the app starts up after that. I believe this is happening on the call to:

    [[SKPaymentQueue defaultQueue] addTransactionObserver:observer];

which I am calling on startup in accordance with step 6 in Apple&#39;s in-app purchase guide:

* archived guide: https://web.archive.org/web/20130515222703/https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/StoreKitGuide/AddingaStoretoYourApplication/AddingaStoretoYourApplication.html
* actual guide: https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/StoreKitGuide/Chapters/DeliverProduct.html#//apple_ref/doc/uid/TP40008267-CH5-SW4

My guess is that, for some reason, Apple&#39;s in-app purchase servers aren&#39;t registering that the transaction finished successfully - even though I call

    [[SKPaymentQueue defaultQueue] finishTransaction:transaction];

when the transaction is completed and my content has been successfully downloaded.

2 questions:

1. Is anyone else seeing this?

2. Does anyone have a suggested fix?

**BOUNTY EDIT**:

Its a transaction which was made with a different Apple-ID. Thats why it cannot be finished unless you type in the right credentials into the dialog. The Question should be either: 

 1. How can I prevent such dead transactions (transaction has not been finished, user has no network, meanwhile changes App-ID)?
 2. How can you prune the `SkPaymentQueue`? 

SKPaymentQueue addTransactionObserver asking for App Store password on startup after in-app purchase

I have Apple iOS IAP successfully implemented in my app and tested in the sandbox. Works great.

I&#39;m concerned that users could buy something with IAP, download it into my app, then complain to Apple and get a refund. There&#39;s no obvious way that refunds are reported to my app. Are they simply left out of the list of products I receive during a &quot;restore&quot; operation? Is there some undocumented transaction type that will asynchronously show up in my SKPaymentTransactionObserver when a refund occurs?

Right now I&#39;m operating on the assumption that I need to delete the user&#39;s IAP transactions before doing a restore, and that anything refunded will just not be in the list of restored transactions. Is this the right way to do it? Is there any way to test this in the sandbox?

Has anyone seen refunds in a production environment and can explain how they work?

How does Apple notify iOS apps of refunds of in-app purchases (IAP)?

I&#39;m unable to change the price of an in-app purchase. I added initially for testing purposes, but now that I&#39;m submitting the app, I&#39;d like to change it. Unfortunately, it doesn&#39;t seem to accept the change. It is showing me the same price tier not the updated one.what should i do ?

Unable to change the Price tier in the In app Purchase

I&#39;m trying to set up IAP but after making a call to retrieve the products using SKProductsRequest the SKProductsResponse array within my delegate has a count of 0. Here&#39;s my checklist:

- Test product has been added to iTunes connect
- The product&#39;s bundle id matches the app bundle id (and its not using a wildcard)
- The product identifier set in the SKProductRequest matches the product created on iTunes connect
- I&#39;ve waited several hours since the product was created on iTunes connect
- The provisioning profiles enable IAP 
- Followed all steps in various tutorial such as http://troybrant.net/blog/2010/01/in-app-purchases-a-full-walkthrough/ etc.
- Have deleted app from device, relaunched Xcode, rebuilt etc. etc.

Any other suggestions as to why the fetched product count is zero?


I don&#39;t believe this will be a coding issue, but here it is anyway:

    …
    
    NSSet *productIdentifiers = [NSSet setWithObjects:@&quot;redacted&quot;, nil];
    self.productsRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:productIdentifiers];
    self.productsRequest.delegate = self;
    [self.productsRequest start];
    
    …
    - (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response
    {
        NSArray *products = response.products;
        NSLog(@&quot;Product count: %d&quot;, [products count]);
        for (SKProduct *product in products)
        {
            NSLog(@&quot;Product: %@ %@ %f&quot;, product.productIdentifier, product.localizedTitle, product.price.floatValue);
        }
    }

Reasons for SKProductsRequest returning 0 products?

I&#39;m currently testing my InApp billing mechanism (using the InApp Billing version 3 API, therefore taking the TrivialDrive example as reference).

I have one managed item, which is upgrade to premium version.

Now, purchasing the item with my test account works, but when I do a cancellation of the entire order in Google checkout afterwards, my code still tells me that the item is purchased an therefore grants the premium features.

Here is how I check for the purchase in my MainActivity. I do not save the purchase state locally somewhere, as I understood that the with the billing API v3, you can query for purchases ad hoc as needed.

    @Override
    	protected void onStart() {
    		// TODO Auto-generated method stub
    		super.onStart();
    		
    		iabHelper = new IabHelper(this, Helper.getPKey());
            iabHelper.enableDebugLogging(true);
            
            iabHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
    			
    			@Override
    			public void onIabSetupFinished(IabResult result) {
    				Log.d(&quot;IAB&quot;, &quot;SETUP FINISHED&quot;);
    				
    				if(!result.isSuccess())
    				{
    					Log.d(&quot;IAB&quot;, &quot;SETUP NOT OK&quot;);
    					return;
    				}
    				else
    					Log.d(&quot;IAB&quot;, &quot;SETUP OK&quot;);
    					
    				iabHelper.queryInventoryAsync(
    					new QueryInventoryFinishedListener() {
    						
    						@Override
    						public void onQueryInventoryFinished(IabResult result, Inventory inv) {
    							Log.d(&quot;IAB&quot;, &quot;Query inventory finished.&quot;);
    				            if (result.isFailure()) {
    				                Log.d(&quot;IAB&quot;,&quot;Failed to query inventory: &quot; + result);
    				                return;
    				            }
    
    				            Log.d(&quot;IAB&quot;, &quot;Query inventory was successful.&quot;);
    
    				            // Do we have the premium upgrade?
    				            boolean mIsPremium = inv.hasPurchase(Helper.premiumSku);
    				            Purchase p = inv.getPurchase(Helper.premiumSku);
    				            if(p != null)
    				            	Log.d(&quot;IAB PURCHASE STATE&quot;, IabHelper.getResponseDesc(p.getPurchaseState()));
    				            else
    				            	Log.d(&quot;IAB PURCHASE STATE&quot;, &quot;Purchase is null&quot;);
    				            
    				            Log.d(&quot;IAB&quot;, &quot;User is &quot; + (mIsPremium ? &quot;PREMIUM&quot; : &quot;NOT PREMIUM&quot;));
    				            
    							
    						}
    					}						
    					
    				);				
    			}
    		});       
    	}

I keep getting getPurchaseState = 0, which means is Purchased, even one hour after I cancelled the order. Why?

Android In-App Billing: Purchase state stays &quot;purchased&quot; after order cancelation

Currently with In app purchase the only way to cancel an auto-renewing subscription is to do the following with the device: 

Settings &gt; Store &gt; View my account &gt; Manage my subscription


Is it possible programmatically to link directly to the Manage my subscription page in the app store?  I know I can open the app store via something like 

    NSURL *url = [NSURL URLWithString:@&quot;itms-apps://itunes.apple.com&quot;];
    [[UIApplication sharedApplication] openURL:url];

I have seen other apps do this but I can&#39;t seem to figure out how.




Link to app manage subscriptions in app store

**Edit**: Android now supports [in-app billing][1]!

**Original question:**

It looks like Android won&#39;t natively support in-app purchases for a while, and when it does there might be a huge user base with devices that don&#39;t support them.

What&#39;s the best way to implement iPhone-like (additional content or services) in-app purchases in Android using the Android Market if possible? 

The solution should consider in particular: 

* For all kinds of in-app purchases: Android Market&#39;s 24-hour cancellation policy
* For consumables/non-consumables: storage of additional content (ie: use precious application memory to avoid piracy, or use SD card to avoid bloating application memory)

Thanks!


  [1]: http://developer.android.com/guide/market/billing/index.html

Implementing In App purchases in Android?

In Apple&#39;s AppStore Terms &amp; Conditions, you may find the following statement in relation to Auto-renewable In App Purchases:

&gt;&quot;Certain paid In App Subscriptions may offer a free trial period prior to charging your Account.&quot;

How does it work? I haven&#39;t seen any option to allow such free trial period for my Auto-renewable IAPs in iTunes Connect.

How to set-up In App Purchase free trial period in iOS app

For a basic app with nonconsumable in-app purchases, has anyone figured out best practices for using SKPaymentQueue&#39;s `restoreCompletedTransactions`?


### Observations ###
I know it&#39;s recommended to always register a transaction observer to receive pending transactions that make their way back to the app, but this is a different question.  It looks like `restoreCompletedTransactions` is something the app has to actively decide when to call to poll for all the purchases the customer has already made.

From what I can tell, the method is designed to retrieve purchases that may have been lost.  For example a customer might install or move an app to a new device in such a way where the app&#39;s local records of previous payments are lost or reset.


### Concerns ###
What&#39;s not clear to me is how to automatically detect this condition (i.e. how to decide when to poll for missing purchases) in a reliable way.  I don&#39;t want to screw this up and risk denying a customer access to functionality they&#39;ve already paid for.

At the same time, I don&#39;t want to call `restoreCompletedTransactions` every single time the app launches just to be safe and basically get back transactions I already know about 99.9% of the time.  (Except for in-app purchasing, my app doesn&#39;t really require any network connectivity.)


### Notes ###
Apple documentation clarifies that customers are not charged again for any nonconsumable purchases they have already made.  If they try to re-purchase, a payment transaction is still supposedly sent to the app.

Worst-case, a customer could recover purchases this way but I&#39;d still like to avoid walking them down a path that resembles re-purchasing something they&#39;ve already paid for.

When to use restoreCompletedTransactions for in-app purchases?

I am working on in app purchase.
After submitting all the details in app purchase gives me status &quot;Ready to Submit&quot;.

But the &quot;Submit For Review&quot; button is disabled in my app&#39;s in app purchase.
This is giving me this warning

&quot;Your first In-App Purchase must be submitted with a new app version. Select it from the app’s In-App Purchases section and click Submit.&quot;

I can&#39;t understand what to do. If anybody knows solution please help me.
Thanks in advance.


Submit in app purchase for review for first time

I have made an application for my client by keeping target iOS as 4.  
But since the application still not submitted to Apple store, my client is planning to upgrade it for iOS 5.0.  

For this I read the [guideline from Apple][1] and found that &quot;Only user-generated data or that cannot otherwise be recreated by your application, should be stored in the &lt;Application_Home&gt;/Documents directory and rest should be stored to &lt;Application_Home&gt;/Library/Caches directory&quot; 

In my application, I am using server model of in-app purchase for non-consumable product. For this I am storing all my downloaded data (which are basically books or magazines) to Documents directory. The Database is also present in the same directory which contains the details about the downloaded products.  

My question is,  
1. Should I have to change my code to store the downloaded data to Library/Caches directory instead of to the Documents directory?  
2. Where should my database file be placed (to Documents or Caches)?  

If I put it products in the Caches then I have to change the logic of retrieval also, since it is considered that if record is present in database, there is no need change the existence of the file and it directly opens it when user clicks on the magazine.  

Kindly guide me on this issue.  
Thanks in advance.

**UPDATED:**  
I am updating this for those who are still not sure about this problem.  
Using the guideline of accepted answer, I have implemented this in 2 of my applications and submitted them to Apple Store. Both were approved in review.  
This may promote that the solution suggested in the accepted answer is correct.  

  [1]: https://developer.apple.com/icloud/documentation/data-storage/

All In App-Purchase Solutions on Gang of Coders

Total of 29 In App-Purchase Solutions