For Charging apps- You can sell your new issues, old issues and subscriptions through the commerce store which is native to a device's platform such as Apple App store, Google Play and Amazon Appstore.

For free hosting- We can create enterprise apps which can be hosted within your company network.
http://www.appstudio.net/Platform/Faqs.aspx#15

For other issues please submit a ticket http://support.quark.com