声明书来自于德克·萨斯一家叫Lodsys的公司，自称拥有四项专利，涉及应用内付费系统，交互式在线广告，在线帮助和订阅更新。
The claims come from a Texas-based company called Lodsys, which said it has four patents relating to in-app purchases, interactive online ads, online help and subscription renewals.
如果一个应用程序在七天内维持高下载量，它就会出现在“最佳付费应用”或者是“最佳免费应用”的列表中，保证它在30天内保持流行。
If an app continues to be among the highest-downloaded over that seven-day period, it will move into either the "Top Paid" or "Top Free" lists, which cover popularity over a 30-day period.
上图是由付费应用程序、付费程序中的“程序内购买”以及免费程序中的“程序内购买”的营收比较表。
A breakdown of revenue split across paid apps, paid apps with in-app purchase, and free apps with in-app purchase.
请注意，而应用程序是免费的，请注意，它包含为真正的金钱，可以购买的愿望，以提高他们的游戏体验后，用户的付费内容。 您可以禁用应用程序内购买，通过调整设备的设置。
Please note that while the app is free, please be aware that it contains paid content for real money that can be purchased upon users' wish to enhance their gaming experience.
请注意，而应用程序是免费的，请注意，它包含为真正的金钱，可以购买的愿望，以提高他们的游戏体验后，用户的付费内容。 您可以禁用应用程序内购买，通过调整设备的设置。
Please note that while the app is free, please be aware that it contains paid content for real money that can be purchased upon users' wish to enhance their gaming experience.
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