The application allows you to read some articles for free, and it filters searches in order to find only the results you want, whether it be video games, sports, news, politics, the environment, etc.
Of course, in order to be able to read all of these publications you must subscribe first. But you can save the editions you have purchased, and keep them on your device.
Zinio is ideal for the iPad, but it works perfectly well on any iOS device. It is slightly inconvenient, however, to read magazines on the iPhone screen.