¿What does the free Büttonpublish license offer?

The free Büttonpublish license allows you to use the InDesign plugin and the Bütton View app for Android and iOS completely free!

The Bütton View app allows you to work with the indesign plugin and preview your publication at any moment while designing. This App behaves exactly like any of the apps that you can generate with any newsstand license!