ioszip
Only 1click, you can download imgs for app store!
http://ioszip.mashroom.in/
You can use in command line.
The install command is below. Please copy and paste in your terminal app.
$ curl -O https://raw.githubusercontent.com/ioszip/ioszip.github.io/command-line-tool/ioszip.github.io.rb /usr/local/Library/Formula/ioszip.github.io.rb; brew install ioszip.github.io
So, You can use ioszip
command.
$ ioszip --help