Creative cloud

[#1]

If I purchase the Creative package do I have acsess on all my devices such as ipad and Mac book?

[#2]

You can have the Creative Cloud activated on two computers. You can have it on additional computers; however, you would need to deactivate whichever app you want to use on one of the previous machines in order to activate it on a third. Here's more info on installing apps on multiple computers: 

https://helpx.adobe.com/download-install/using/install-apps-number-of-computers.html

Creative Cloud includes Photoshop and Illustrator on the iPad and other mobile apps: 

https://www.adobe.com/creativecloud/catalog/mobile.html