免费的技术支持也可以以邮件列表或新闻讨论组的形式得到。然而，某种形式的背景研究、知识或经验常常是需要的。
Free technical support is often available in the form of mailing list or newsgroup discussions; nevertheless some background research, knowledge or experience is often required.
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.
苹果公司评测了iPad上的所有应用程序，提供了下面这个史上最佳免费iPad应用程序列表。
Apple has reviewed all the apps for the iPad and made a list of the best free iPad applications of all times.
应用推荐