The first service offering from Qlik Cloud is a sharing platform for small groups. More information will be forthcoming, but expect functionality that will allow sharing with users who will in turn be able to work within the provided visualizations of the shared app. Access to scripting and expressions will be limited.
Sharing will be allowed with a set number of users. So long as you have shares available, you can invite anyone to view the app. Changing the users you share with will be tied to a monthly cycle.