First of all, we need to know that if you want to download an application through the Apple AppStore, you must log in to the AppleID on your Apple phone. If you find that you can't download the software, please check whether you have logged in to the AppleID account first. You can check it directly through the App Store, or you can check whether the AppleID is logged in through the settings.
In addition to the account can not be downloaded without logging in, many times the application can not be downloaded because of the network environment. I suggest you try to change the network environment first. In most cases, this problem can be solved by changing WiFi.
Referring to this, many netizens will find that they can't surf the Internet normally when using their mobile phones. In this case, you can try to restore the network settings and then reconnect to the wireless network. Operating Steps: Click Apple Phone Settings-> General-> Restore-> Restore Network Settings in turn. This method will erase all previously stored network information, and you must reconnect.