First, tips are generally free software.
Second, if the software charges, there will be a reminder of the amount.
Fees are not limited to credit cards, and UnionPay cards can be purchased and used.
App Store is iTunes Store? Part of it is the service software of iPhone, iPod Touch, iPad and Mac, which allows users to browse and download some applications developed for iPhone SDK or Mac from iTunes Store or Mac App Store. Users can purchase paid items and free items, and download applications directly to iPhone or iPod touch, iPad and Mac. It includes: games, calendars, translation programs, galleries and many practical software. The App Store in Mac is called Mac App Store, which is different from the software of iOS. App Store has a large number of mobile applications to choose from, all designed by Apple and third-party developers for iPhone.