两个iPhone手机使用同一个AppleID，然后将自行下载的功能开启即可，以iPhone7手机为例，具体方法如下：
第一步，在手机桌面上找到“设置”一项的图标并点击进入。
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第二步，进入设置后点击自己的AppleID进入。
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三、进入以后，选择“iTunesStore与AppStore”选项。
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四、最后将自动下载的项目项下的“应用”、“图书与有声读物”和“更新”的开关开启即可。
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五、然后在另外一个手机也重复相同操作，打开下图红框内的选项即可。
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