iPhone 应用程序的非续订订阅是否可以提供免费试用期？
我们正在创建的应用程序提供每天更新的信息，我不清楚如何提供免费品尝者。你能帮忙吗？
iTC 开发者指南第 149 页有关非续订订阅的信息，第 151 页指出应用内购买不能免费。
https://itunesconnect.apple.com/docs/iTunesConnect_DeveloperGuide.pdf
■ 非续订过去，订阅一直用于期限有限的服务。一个例子是杂志或报纸要求用户续订自己的订阅。仍然可以提供非续订订阅，但现在自动续订订阅成为首选，原因如下：
- 创建自动续订订阅时，您可以轻松设置要提供的各种持续时间。非续订订阅没有此功能，因此您必须通过其他方式提供信息。由于这通常是在显示名称中完成的，因此您最终会为每个可能的持续时间提供单独的列表。相比之下，自动续订订阅允许您拥有一个列表，用户只需选择您提供的持续时间之一即可。
- 由于非续订订阅要求用户每次续订，因此您的应用程序必须包含识别订阅何时到期的代码。它还必须提示用户购买新的订阅。自动续订订阅消除了这些步骤。
- 作为 iOS 的一部分，自动续订订阅将自动发送到与用户 Apple ID 关联的所有设备。要使设备同步可用于非续订订阅，您必须创建自己的交付系统。
The app we are creating delivers information which updates on a daily basis, how to provide a free taster is unclear to me. Can you help?
Info on Non-Renewing Subscription from p149 of the iTC developer Guide, p151 states Inn-App purchase cannot be free.
https://itunesconnect.apple.com/docs/iTunesConnect_DeveloperGuide.pdf
■ Non-Renewing Subscriptions have been used in the past for services with a limited duration. An example of this would be a magazine or newspaper that requires users to renew their own subscriptions. Non-renewing subscriptions can still be offered, but auto-renewable subscriptions are now preferred for the following reasons:
- When creating an auto-renewable subscription, you can easily set up the various durations that you want to offer. Non-renewing subscriptions do not have this feature, so you must provide the information some other way. As this is often done in the display name, you end up with a separate listing for every possible duration. By contrast, auto-renewable subscriptions allow you to have a single listing where the user simply chooses one of the durations that you offer.
- Because a non-renewing subscription requires a user to renew each time, your app must contain code that recognizes when the subscription is due to expire. It must also prompt the user to purchase a new subscription. An auto-renewable subscription eliminates these steps.
- As part of iOS, an auto-renewable subscription will automatically be delivered to all devices associated with the user’s Apple ID. To make device-syncing available for a non-renewing subscription, you would have to create your own delivery system.
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您可以在商店免费销售您的应用程序。然后提供非续订订阅，但仅在一个月后（或您选择的任何时间段）后向用户显示该选项。您应该从自己的服务器管理订阅，以便即使用户删除并重新安装您的应用程序，您也可以验证收据并跟踪到期日期。使用您的服务器还可以让您在用户拥有的所有设备之间同步订阅（这是 Apple 所要求的）。他们本质上坚持要求您实现一个可选用户名/密码系统，以允许用户恢复他们对其他设备的订阅）。
警告：请勿在您的应用或说明中使用“试用”或“演示”等字样。这违反了 Apple 的政策。另外，如果用户选择在一个月后不购买订阅，也不要让您的应用程序死亡。这也可能会让你被拒绝。您应该继续提供一些功能。
You could sell your app for free on the store. Then offer a non-renewing subscription, but only show the option to the user after a month has passed (or whatever period you choose). You should administer the subscription from your own server so that you can verify receipts, and keep track of expiration dates even if a user deletes your app and re-installs it. Using your server will also give you a way to sync the subscription across all the devices a user owns (which is required by Apple. They essentially insist that you implement an optional username/password system to allow a user to restore their subscription to other devices).
Warning: Don't use the words 'trial' or 'demo' in your app or description. This is against Apple's policies. Also, don't make your app dead if the user chooses not to buy a subscription after a month. This will also likely get you rejected. You should continue to provide some functionality.
分发具有功能限制的免费精简版，或尝试在应用程序中购买。
Distribute a free lite version with function limit, or try in app purchase.