In App Purchase

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Find out what in-app purchases are available https://support.apple.com/en-us/HT202023 https://developer.apple.com/in-app-purchase/ https://www.raywenderlich.com/5456-in-app-purchase-tutorial-getting-started https://medium.com/revenuecat-blog/apple-will-reject-your-subscription-app-if-you-dont-include-this-disclosure-bba95244405d https://medium.com/revenuecat-blog/dissecting-an-app-store-receipt-b1e9c5136482 https://developer.apple.com/documentation/storekit/in_app_purchase/offering_introductory_pricing_in_your_app https://stackoverflow.com/questions/25755004/use-in-app-or-latest-receipt-info-for-getting-latest-receipt-for-auto-renewable

Validating Receipts With the App Store https://developer.apple.com/library/archive/releasenotes/General/ValidateAppStoreReceipt/Chapters/ValidateRemotely.html#//apple_ref/doc/uid/TP40010573-CH104-SW1 appStoreReceiptURL https://developer.apple.com/documentation/foundation/nsbundle/1407276-appstorereceipturl Receipt Fields https://developer.apple.com/library/archive/releasenotes/General/ValidateAppStoreReceipt/Chapters/ReceiptFields.html#//apple_ref/doc/uid/TP40010573-CH106-SW1 Enable server notifications for auto-renewable subscriptions https://help.apple.com/app-store-connect/#/dev0067a330b https://stackoverflow.com/questions/7086612/in-app-purchase-multiple-auto-renewing-subscriptions-having-different-durations Subscription https://developer.apple.com/app-store/subscriptions/ https://stackoverflow.com/questions/1757467/when-to-use-restorecompletedtransactions-for-in-app-purchases https://stackoverflow.com/questions/39884559/is-it-necessary-to-validate-refresh-an-app-store-receipt-on-launch-in-ios https://stackoverflow.com/questions/45615106/when-to-refresh-a-receipt-vs-restore-purchases-in-ios https://stackoverflow.com/questions/46406083/how-can-i-get-this-app-store-purchase-window-in-my-app What's New in StoreKit https://developer.apple.com/videos/play/wwdc2017/303/ ⭐️

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https://stackoverflow.com/questions/25905008/is-the-receipt-at-nsbundle-appstorereceipturl-still-present-after-an-app-updat https://stackoverflow.com/questions/36516799/receipt-validation-receipt-maintained-after-app-delete https://gregheo.com/blog/iap-restore/

[onmyway133]

Expiration and Renewal https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/StoreKitGuide/Chapters/Subscriptions.html#//apple_ref/doc/uid/TP40008267-CH7-SW3

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appStoreReceiptURL vs restoreCompletedTransactions https://stackoverflow.com/questions/29636786/any-reason-to-use-restorecompletedtransactions-given-appstorereceipturl-in-ios7 Restoring Purchased Products https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/StoreKitGuide/Chapters/Restoring.html#//apple_ref/doc/uid/TP40008267-CH8-SW9 ⭐️ https://stackoverflow.com/questions/16084315/ios-storekit-when-to-call-voidrestorecompletedtransactions http://alexistaugeron.com/blog/2013/09/23/app-store-receipt-validation-on-ios-7/

[onmyway133]

https://stackoverflow.com/questions/29977795/how-can-i-test-a-cancellation-of-subscription-in-store-kit-in-app-purchase https://stackoverflow.com/questions/14309427/paymentqueuerestorecompletedtransactionsfinished-vs-updatedtransactions https://stackoverflow.com/questions/46413981/how-to-handle-shouldaddstorepayment-for-in-app-purchases-in-ios-11

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https://cocoacasts.com/five-in-app-purchase-mistakes-to-avoid

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https://stackoverflow.com/questions/31470926/how-to-get-some-user-information-when-user-buy-some-items-on-apple-in-app-purcha https://stackoverflow.com/questions/18083597/in-app-purchase-get-the-name-or-id-of-the-google-play-account-thats-requesting

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Advanced StoreKit https://developer.apple.com/videos/play/wwdc2017/305/

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Engineering Subscriptions https://developer.apple.com/videos/play/wwdc2018/705/

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https://github.com/mattt/CargoBay