來源：
https://www.macrumors.com/2017/09/12/apple-itunes-12-7-no-app-store/
In a day filled with surprises, Apple has shocked us once again
with the release of iTunes 12.7,
which entirely revamps the iTunes App.
The new iTunes is designed to focus solely on music, movies, TV shows,
podcasts, and audiobooks, which means there is
no built-in App Store.
(iTunes 12.7 將無內建App Store)
Apps can now only be downloaded on an iOS device using an iOS device,
(Apps將可能只能透過iOS裝置進行下載與安裝)
and the same goes for ringtones.
(鈴聲也可能如App一樣須使用iOS裝置下載使用)
In addition to the removal of the App Store,
today's update adds support for syncing iOS 11 devices and includes support
for new Apple Music features that allow you to follow friends and
see what they're listening to.
(更新後也將支援iOS 11 ，
與新的Apple Music功能：探索並追蹤你的朋友正在聽什麼音樂？？？？？這......)
If you previously used iTunes to sync apps or ringtones on your iOS device,
use the new App Store or Sounds Settings on iOS to redownload them
without your Mac.
(如果你之前使用iTuns來同步你的apps以及鈴聲，現在則須使用iOS中的App Store
以及 聲音設定 來下載，不再需要使用到Mac)
The update is available for all iTunes users at no cost.
(我可以付你錢不要更新嗎@@)
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因為iOS app store 有100mb限制，所以常利用手機熱點分享網路給電腦後，
再透過iTunes來為iOS上的大型app更新，
但這樣改下來對家中沒有wifi的用戶實在不太友善啊～～