StoreKit

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Support in-app purchases and interactions with the App Store using StoreKit.

StoreKit Documentation

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Transactions Finish does not work on iOS 26 beta3
On iOS 26 beta 3, after a user purchases an item, initiating a second order for the same product fails to process payment. The system returns the same transaction ID and displays an interface message stating: "You've already purchased this In-App Purchase. It will be restored for free."​​ ​​I’ve tested this – not only did the legacy StoreKit finishTransaction method fail to work, but StoreKit2 finish method also malfunctioned.​​ ​​When will Apple fix this issue? If unresolved, it will prevent a large number of users from making purchases normally, leading to disastrous consequences.​
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Jul ’25
In iOS 26 beta3 version, the finishTransaction method is unable to remove transactions from the SKPaymentQueue, causing transactions to remain in the queue even after being processed.
We have some users who have upgraded to iOS 26 beta3. Currently, we observe that when these users make in-app purchases, our code calls [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; method, and we clearly receive the successful removal callback in the delegate method - (void)paymentQueue:(SKPaymentQueue *)queue removedTransactions:(NSArray<SKPaymentTransaction *> *)transactions. However, when users click on products with the same productId again, the method - (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions still returns information about previously removed transactions, preventing users from making further in-app purchases.
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305
Jul ’25
Best practice to prevent users from switching between subscriptions in the same group?
Hello everyone, For example, our app currently has one subscription group in App Store Connect with 5 plans (2 annual, 2 monthly, and 1 quarterly). By default, users can go into Apple Subscriptions in Settings and freely switch between all of these plans. However, our business requirement is to only allow users to stay on one annual plan and one quarterly plan. We don’t want them to switch to the other plans. My questions are: Is there any best practice or recommended approach to restrict subscription switching within the same group? Would removing the unwanted products from sale be the correct approach, or are there any risks/downsides with this method? Has anyone faced a similar situation and found a practical solution? Any guidance or shared experience would be greatly appreciated. Thanks!
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125
Sep ’25
iOS in-app purchasing in Unity app
Hi everyone, I am working on a Unity iOS app. I am adding in-app purchasing in my app. I have added Unity IAP to the Unity project, as well as the code for initialising and purchasing a subscription with the product ID. I have also added my certificates and provisioning profile in Xcode with in-app purchasing capabilities. Also, I have set up an App Store Connect page with a non-renewing subscription with a unique product ID and all required information. The subscription status is ready to submit. I have added a sandbox tester account in it. In unity editor, it is working fine with fake purchase receipt. While testing in an iOS device, apple ID is logged out. But there is an error occurs everytime : IAP not initialized. Also I have uploaded a newer version of app on app store connect, it is in waiting for review status. Is there any step or something I am missing that it is not working in iOS device? Please help
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Mar ’25
StoreKit 2.0 keep throwing unknown error.
After the release of StoreKit 2.0, the in-app purchase failure rate increased by 63.19%, with the majority of errors being StoreKitError.unknown. When encountering this error, many users repeatedly attempt to make a purchase, but the outcome remains unchanged, resulting in the same unknown error. In some cases, users who wait approximately 2 minutes before retrying the purchase may either succeed or encounter the following error: “StoreKit.StoreKitError.systemError(Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named com.apple.storekitd”)”. This issue has directly impacted our app's purchasing flow. Because our app only displays the promotional purchase offer once, these issues have significantly reduced the number of users successfully completing the offer. As a result, the conversion rate for this promotion has dropped well below expectations, negatively impacting our business metrics.
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1.7k
Feb ’25
StoreKit.product.purchase returns success, but subscription does not appear in Settings
Description: We are developing an iOS app that offers only one auto-renewable subscription. Recently, a user who had not subscribed for over a year purchased the subscription again through our app. However, when they checked Settings > Subscriptions, the new subscription did not appear. Instead, only their past subscription history was visible, and there was no option to cancel the new subscription. We have verified this issue with a screenshot provided by the user. Additionally, we checked our app’s logs and confirmed that StoreKit.product.purchase successfully returned .success, indicating that the purchase was processed correctly. Code used for purchase: let result = try await product? .purchase(options: [ .appAccountToken(uuid) ]) switch result { case .success(let verificationResult): switch verificationResult { case .verified(let transaction): addPurchaseLog("verificationResult.verified.") case .unverified(_, let verificationError): addPurchaseLog("verificationResult.unverified.") case .userCancelled, .pending, .none: addPurchaseLog("verificationResult.userCancelled or .pending or .none") @unknown default: addPurchaseLog("verificationResult.unknown.") } Despite the successful purchase, the new subscription does not appear under the user's active subscriptions. Could this be a bug in StoreKit? If there are any known issues or workarounds, we would appreciate any guidance. Environment: Xcode: 16.2 iOS version: 16.0+
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May ’25
Server Not Receiving Apple App Store Server Notification
Hello, Our server isn't receiving Apple App Store Server Notification for in-app purchases. It works for Sandbox Server, even I sent a test notification which I received on the Production Server URL, but the real in-app payment notification isn't coming to the server. I checked this already: https://developer.apple.com/documentation/appstoreservernotifications/enabling-app-store-server-notifications and everything here has been reviewed. Transport Layer Security (TLS) version and others things mentioned have been checked, test notification was received. But the main in-app purchase notification for live transaction isn't coming. What's the issue precisely?
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May ’25
Xcode 26 beta 3: StoreKit Testing broken
It seems that beta 3 broke StoreKit Testing when running against an iOS 26 simulator device. Specifically, when validating product IDs, the debug console displays messages like the following: [492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue) [492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue) [492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue) [492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue) [492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue) [492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue) [492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue) [492a4cfa_SK1] Could not parse product: missingValue(for: [StoreKit.ProductResponse.Key.price], expected: StoreKit.BackingValue) In addition, the SKProductsResponse (I am using the original StoreKit API), lists all requested product IDs in invalidProductIdentifiers. The products array is empty. StoreKit Testing behaves as expected when Xcode 26 beta 3 is run against an iOS 18.4 simulator device.
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Aug ’25
StoreKit 2 - Is it necessary to finish unverified transactions?
The sample code provided in https://developer.apple.com/wwdc21/10114 doesn't appear to call finish() on unverified transactions, and I haven't been able to find any documentation regarding what to do with unfinished transactions. However, Apple has always emphasized the importance of finishing transactions, and since a transaction object is provided even with the unverified state, I'd love some guidance!
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2.7k
May ’25
AppTransaction.shared doesn’t return originalAppVersion for users who installed the app in 2017
Hi, I'm using the AppTransaction.shared API to retrieve the originalAppVersion, but I'm encountering issues for users who originally installed the app in 2017. Specifically, the property doesn't seem to return the expected value (or returns nil) for these older accounts. I have verified this issue using a real App Store purchase from 2017. Steps to Reproduce: Use a test account that originally downloaded the app in 2017. Call: let shared = try await AppTransaction.shared print(shared.originalAppVersion) Observe that originalAppVersion is missing or not returned correctly. Any insights on whether this is expected behavior for very old App Store purchases, or if there is a workaround to reliably detect the original app version? Thanks in advance!
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May ’25
Internal testing. Receipt not always contain last consumable purchase.
After game restart first purchase is contained in receipt but the next ones is the same as first one so new purchases is not added. I afraid players can be charged for purchase but on my server I will not receive new purchases instead receipt with old one so they can do not receive in game currency. Will in production I receive a receipts with new consumable every time player purchase it? I use Unity3d In-app purchasing 5.0.1.
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203
Sep ’25
Is wallet extension an mandatory implementation for Apple Pay and Add to wallet?
I am working on a banking application (includes iPhone and iPad) which includes add to wallet feature. During the implementation I saw one document it is mentioned that for iPad app, the app must be extended to support Apple pay functionality. Details from document says "Card Issuers with an iOS mobile banking app must support Card Issuer iOS Wallet extension functionality to enable Card issuer mobile app customers to provision new cards directly from the iOS Wallet app with all eligible Apple iOS devices. If the Card Issuer has a dedicated iPad App, that App must be extended to support Apple Pay functionality. " Is wallet extension implementation required for Apple pay to work in iPhone and iPad? Is wallet extension a mandatory implementation for Add to Apple Wallet feature to work and approved by Apple? I am little confused in this. Anyone who integrated Apple pay or done add to Apple Wallet feature recently without wallet extension faced any rejection? Any help would be much appreciated.
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3.7k
Feb ’25
In-app purchases fail: "Password reuse" error?
I'm trying to implement my first in-app purchase, and I've created the IAP in App Store Connect, and created a sandbox account. When I open Settings > Developer in the iPhone Simulator, there is a "Sandbox Apple Account" option at the bottom. If I click the blue "Sign In" link I'm asked for the email and password, so I enter the correct credentials for the sandbox account. The "Sign In" text goes grey for a few seconds, then it goes blue again. It never changes to show that I'm signed in. Should it? (I think so.) Do I need to sign into the Simulator's Apple Account, too? (I don't think so.) Anyway, aside from that, in my app the IAP is listed and I have a button to purchase it. When I click it I'm asked for the email and password to sign into the Apple Account. I enter the correct sandbox email and password (they are definitely correct) and I see this in the Xcode console: Purchase did not return a transaction: Error Domain=ASDErrorDomain Code=530 "(null)" UserInfo={client-environment-type=Sandbox, NSUnderlyingError=0x600000d0c7b0 {Error Domain=AMSErrorDomain Code=100 "Authentication Failed The authentication failed." UserInfo={NSMultipleUnderlyingErrorsKey=( "Error Domain=AMSErrorDomain Code=2 \"Password reuse not available for account The account state does not support password reuse.\" UserInfo={NSDebugDescription=Password reuse not available for account The account state does not support password reuse., AMSDescription=Password reuse not available for account, AMSFailureReason=The account state does not support password reuse.}", "Error Domain=AMSErrorDomain Code=0 \"Authentication Failed Encountered an unrecognized authentication failure.\" UserInfo={NSDebugDescription=Authentication Failed Encountered an unrecognized authentication failure., AMSDescription=Authentication Failed, AMSFailureReason=Encountered an unrecognized authentication failure.}" ), AMSDescription=Authentication Failed, NSDebugDescription=Authentication Failed The authentication failed., AMSFailureReason=The authentication failed.}}} Why is it talking about password reuse? AFAIK, I have only one sandbox account for this app (and none for any of my other apps), and this is the only one of my apps that has an IAP. Any ideas on how to get an IAP working? Thanks!
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1.9k
Jan ’25
How to change promotional image of in-app purchase
My apps stuck on review stage. Reason of it is Guideline 2.3.2 - Performance - Accurate Metadata We noticed that your promotional image to be displayed on the App Store does not sufficiently represent the associated promoted in-app purchase. Specifically, we found the following issue with your promotional image: – Your promotional image is the same as your app’s icon. The problem is i can't change this image. My subscription is still in 'in review' stage and I don't have option like delete image or change image. I replied to the review explaining that I cannot change it as long as the subscription is under review, but I haven’t received any meaningful reply, except that I need to change promotion image to be eligible for further review(which i cant do because i haven't option to change this image). Has anyone had such a problem before?
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1.9k
Oct ’25
Invalid currency symbol
Strange issue with currency display in subscription products Hi everyone, I'm facing a strange issue in my app where I use a subscription-based in-app purchase model. The products I created in App Store Connect are all in "Approved" status. I've tested with both RevenueCat and StoreKit, but the result is the same. Here are the products being loaded: Product loaded: weekly_product_id Display name: Weekly Pro Description: Weekly Pro Subscription Price: ₺229,99 Product loaded: annual_product_id Display name: Annual Pro Description: Annual Pro Subscription Price: ₺1.799,99 Even though I can see the correct prices and currency (Turkish Lira) in the Xcode debug console, on my real device the currency appears as Philippine Peso, as shown in the attached screenshot. Interestingly, in the iOS simulator, it's displayed in USD. I've double-checked and my device's region settings are set to Turkey. Any ideas on what could be causing this? And more importantly, how can I fix it? Thanks in advance!
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80
Apr ’25
Transaction ID Misassociation in IAP Subscription API
Dear Apple Support Team, Hello! I am currently developing the in-app subscription functionality using Apple IAP API and have encountered a serious technical issue while processing subscription data. I would like to report this issue to you. Issue Description: When calling the subscription API endpoint, the same OriginalTransactionId returns inconsistent results. Specifically, a particular transaction ID (let's call it TransactionId_A) should belong to the subscription order with OriginalTransactionId_A, but it is currently incorrectly associated with OriginalTransactionId_B. This issue severely affects our ability to accurately manage and process subscription data. Here are the relevant log details for your reference: API Endpoint Requested: https://api.storekit.itunes.apple.com/inApps/v1/subscriptions/{TransactionId_A} (Note: The link is a placeholder for the actual API endpoint.) Log Information on February 21, 2025, at 09:40:09: { "AppAccountToken": "{AppAccountToken}", "BundleId": "{BundleId}", "Currency": "CNY", "Environment": "Production", "ExpiresDate": {ExpiresDate}, "InAppOwnershipType": "PURCHASED", "IsUpgraded": false, "OfferDiscountType": "", "OfferIdentifier": "", "OfferType": 0, "OriginalPurchaseDate": {OriginalPurchaseDate}, "OriginalTransactionId": "{OriginalTransactionId_A}", "Price": {Price}, "ProductId": "{ProductId}", "PurchaseDate": {PurchaseDate}, "Quantity": 1, "RevocationDate": 0, "RevocationReason": 0, "SignedDate": {SignedDate}, "Storefront": "CHN", "StorefrontId": {StorefrontId}, "SubscriptionGroupIdentifier": "{SubscriptionGroupIdentifier}", "TransactionId": "{TransactionId_A}", "TransactionReason": "PURCHASE", "Type": "Auto-Renewable Subscription", "WebOrderLineItemId": "{WebOrderLineItemId}" } Log Information on March 21, 2025, at 09:38:49: { "AppAccountToken": "{AppAccountToken}", "BundleId": "{BundleId}", "Currency": "CNY", "Environment": "Production", "ExpiresDate": {ExpiresDate}, "InAppOwnershipType": "PURCHASED", "IsUpgraded": false, "OfferDiscountType": "", "OfferIdentifier": "", "OfferType": 0, "OriginalPurchaseDate": {OriginalPurchaseDate}, "OriginalTransactionId": "{OriginalTransactionId_B}", "Price": {Price}, "ProductId": "{ProductId}", "PurchaseDate": {PurchaseDate}, "Quantity": 1, "RevocationDate": 0, "RevocationReason": 0, "SignedDate": {SignedDate}, "Storefront": "CHN", "StorefrontId": {StorefrontId}, "SubscriptionGroupIdentifier": "{SubscriptionGroupIdentifier}", "TransactionId": "{TransactionId_A}", "TransactionReason": "PURCHASE", "Type": "Auto-Renewable Subscription", "WebOrderLineItemId": "{WebOrderLineItemId}" } From the above logs, it is evident that the same transaction (TransactionId_A) returns different OriginalTransactionId values at different times, which is clearly not expected and severely impacts our ability to correctly process and manage subscription data. I hope you can address and investigate this issue as soon as possible. If you need any further information or assistance, please feel free to contact me. Thank you for your support! Best regards!
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Mar ’25