New to Adobe and need assistance please.

We currently convert educational courseware, catalogues, books etc into an iPad format.

I would like to change our process and use the Creative Cloud to create our products.  I need to be able to easily distribute the ebooks, catalogues or lessons on any iPad or tablet without limitation.

I have been watching InDesign tutorials and the only option I see is to upload to the App Store.  Is there a solution available that would allow my company to design, save the files and then easily distribute to a customer?

I would appreciate some help from the Adobe Administrators on the way forward for my company.

Thanks in advance,

Jason