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StoreHelper

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Implementing In-App Purchases with StoreKit2 in Xcode 13 - 15 using SwiftUI, Swift 5.7 - 5.9, iOS 15 - 17 and macOS 12 - 14. Also supports tvOS and visionOS.

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.gitignore
doc-build.sh
LICENSE.md
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Package.swift
Package@swift-5.9.swift
README.md

// repository documentation

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---

# StoreHelper

![](https://raw.githubusercontent.com/russell-archer/StoreHelper/main/Sources/StoreHelper/Documentation.docc/Resources/images/StoreHelperDemo0.png)

- [StoreHelper Documentation Landing Page](https://russell-archer.github.io/StoreHelper/documentation/storehelper/) - `StoreHelper` documentation landing page
- [StoreHelper Quick Start](https://russell-archer.github.io/StoreHelper/documentation/storehelper/quickstart) - `StoreHelper` quick-start guide 
- [StoreHelper In-Depth Guide](https://russell-archer.github.io/StoreHelper/documentation/storehelper/guide) - `StoreHelper` and `StoreKit2` in-depth guide
- [StoreHelper Demo Project](https://github.com/russell-archer/StoreHelperDemo) - Example Xcode `StoreHelper` project
- [StoreHelper Demo with UIKit](https://github.com/russell-archer/StoreHelperDemoUIKit) - experimental demo showing `StoreHelper` in a UIKit project

---

# Recent Major Changes
- 6 May, 2025
    - **Breaking Change**: Renamed the `SubscriptionInfo` struct to `SubInfo` to avoid a name collision with a `SubscriptionInfo` type alias introduced in StoreKit in iOS 18.4
    - Updated all references, docs and tutorials to the renamed `SubInfo` struct
- 5 May, 2024
    - Simplification of subscription display price logic to use Apple's subscriptionPeriodFormatStyle, which also supports localization. Added by Hengyu (thank you!)
- 2 April, 2024
    - Basic support for tvOS added by Hengyu (thank you!)
- 15 March, 2024
    - Reorganization of documentation to support DocC
- 8 March, 2024
    - Added Privacy Policy Manifest
- 24 January, 2024
    - Basic support for visionOS added by Hengyu (thank you!)
- 23 June, 2023
    - Improved handling of subscription renewals and expirations that happen when the app's not running
    - See `AppStoreHelper.paymentQueue(_:updatedTransactions:)` and `StoreHelper.handleStoreKit1Transactions(productId:date:status:transaction:)`
- 12 February, 2023
    - Made the configuration of subscription products more flexible
    - You can now either rely on a naming convention (as before) or use a "Subscriptions" section in "Products.plist"
    - See the Samples/Configuration/SampleProducts.plist file for details
    - Added unit tests to StoreHelperDemo project
- 27 January, 2023
    - Fixed a bug related to isPurchased for consumable products. Caused a crash on macOS and iOS (thank you Abdullah Kardaş!)    
- 18 January, 2023
    - Additional logging of various activities added
- 17 January, 2023
    - Improved support for handling extended wait times for StoreKit and App Store responses
    - Improved caching of purchasing status
    - Updates to many shared views to handle unknown purchases status
- 10 January, 2023
    - Added support for caching of product purchase status in `isPurchased(productId:)` using the `purchasedProductsFallback` collection
    - Using `purchasedProductsFallback` as a cache can be turned on/off using `StoreHelper.doUsePurchasedProductsFallbackCache`
    - The `purchasedProductsFallback` property is now `public private(set)` rather than `public`
    - Added "Refresh Products" button and support for pull-to-refresh to the products list
    - UI improvements to various views and improved sharing of views between iOS and macOS 
    - Minor documentation updates (StoreHelper Guide)
- 13 December, 2022
    - Added proof-of-concept demo showing `StoreHelper` in a UIKit project
- 27 November, 2022
	- Major update to the way **subscriptions** are handled
	- Subscription prices now show **prices and renewal periods**
	- **Promotional and Introductory offers** on subscriptions are now supported
	- The most appropriate **promotional** or **introductory** offers or standard price and renewal period are automatically displayed
	- Additions to `StoreHelper.SubscriptionHelper`: `hasLowerValueCurrentSubscription(than:)`, `isLapsedSubscriber(to:)`, `allSubscriptionTransactions()`
	- Added in-app redemption of **offer codes**
	- Added new sections to the **Guide** on "Subscription Introductory and Promotional Offers" and "Supporting In-App Offer Code Redemption"
	- **Quick Start** and **Guide** documentation reviewed and updated for iOS16/macOS13/Xcode14 and new subscription features
- 7 Nov, 2022
    - Minor changes re upgrade to iOS 16 and macOS 13
- 19 October, 2022
	- Added new section to the Guide on "Restoring Previous Purchases"
- 15 March, 2022
	- Changed the initialization flow because of a new warning in Xcode 13.3 related to having `@MainActor init()`
	- Removed the need for StoreHelper's init method to run on the main thread by moving some initialization code to a new `start()` method
	- You should now call `StoreHelper.start()` as soon as possible after initializing `StoreHelper`
	- The `start()` method starts listening for transactions and get localized product info from the App Store
	- Updated all documentation because of this change
- 25 January, 2022
	- Refactored `StoreHelper` as a SPM Package
	- Moved example app to separate repo ([StoreHelperDemo](https://github.com/russell-archer/StoreHelperDemo))
	- Updated documentation re change to SPM package
- 19 January, 2022
	- Major updates to documentation
	- Added Mac target
- 21 December, 2021
	- Updated documentation to reflect refactoring changes
- 20 December, 2021
	- Refactored throughout so that this non-private version of `StoreHelper` is in-sync with private `StoreHelper` code used in an app released to the App Store
    
---

# New `SKHelper` package now available for Xcode 16

`SKHelper` is a new (September, 2024), lightweight Swift package that enables developers to easily add in-app purchase and subscription functionaility to their SwiftUI-based apps.

Designed to be an easier-to-use refactoring of **StoreHelper**, it makes use of Apple's **StoreKit Views** to provide a standard and easily customizable UI.

Check out the `SKHelper` [Repo](https://github.com/russell-archer/SKHelper/) and [Quick Start Tutorial](https://russell-archer.github.io/SKHelper/tutorials/quickstart) to get a fast overview of how things work.

---

## Overview of StoreHelper

`StoreHelper` is a Swift Package Manager (SPM) package that enables developers using **Xcode 13 - 15** to easily add in-app purchase 
support to **iOS 15 - 17** and **macOS 12 - 14** SwiftUI apps. The package also provides basic support for visionOS and tvOS.

`StoreHelper` is used to provide in-app purchase support in **Writerly** (iOS/macOS), which is available on the [App Store](https://apps.apple.com/app/writerly/id1143101981?ls=1).

`StoreHelper` provides the following features:

- Multi-platform (iOS, macOS) SwiftUI support for purchasing **Consumable**, **Non-consumable** and **Subscription** products
- Detailed **documentation** and an example project
- Supports **transaction validation**, **pending ("ask to buy") transactions**, **cancelled** and **failed** transactions
- Supports customer **refunds** and management of **subscriptions**
- Supports **introdctory offers**, in-app redeeming of **offer codes** and experimental support for **promotional offers**
- Provides detailed **transaction information and history** for non-consumables and subscriptions
- Support for direct App Store purchases of **promoted in-app purchases**

## License

MIT license, copyright (c) 2022, 2023, 2024 Russell Archer. This software is provided "as-is" 
without warranty and may be freely used, copied, modified and redistributed, including 
as part of commercial software.

See [License](https://russell-archer.github.io/StoreHelper/documentation/storehelper/license) for details.

## Requirements

`StoreHelper` uses Apple's `StoreKit2`, which requires **iOS 15 - 17**, **macOS 12 - 14** and **Xcode 13 - 15**.

## Getting Started

Jump to the [StoreHelper Quick Start](https://russell-archer.github.io/StoreHelper/documentation/storehelper/quickstart) guide.