Need a little direction

1. Storyline is great for creating content, both interactive and straight forward.  If all you need is simple animations, it's okay, but it's one of its weaknesses.

2.  I know the iPad player has on option for offline viewing, but I haven't had any experience with it.  I've heard it's pretty good.

3.  As far as recording information and creating expiration dates, there was a recent discussion here on learning and course management systems.

I've used Adobe's Captivate for a lot of technical training, but I think it's as doable with Storyline as it is with anything else.   As far as protection goes, you'll need to do some research to find out what works best for your situation, but again, it's doable.

Brian, you've ordered quite a large dinner. Others will be chiming in, as Matthew did, and here are some thoughts on the security and reporting side dishes.

To report scores, you'll need some kind of learning management system (LMS), I'm mostly sure. I suspect it's possible for a user to take a lesson offline (not connected to the LMS), and then have the score reported the next time the user connects to the LMS, but I don't immediately know a specific LMS that enables after-the-fact reporting. Google might help.

An LMS would also control timed availability in particular, and subscription eligibility in general.

To report mere completion, no score, with or without an LMS, the Tin Can API allows after-the-fact reporting from an intermittently connected device (including the iPad). However, the completion flag is the only datum reported. Query the very helpful folks at "scorm.com/tincan/"  to let them consider your needs. They seem to know something about nearly every LMS and development tool on the planet. Articulate's Storyline enables that API, by the way.

Regarding content security, bear in mind that a determined thief can brute-force plagiarize using repeated screen captures from which they could share/re-create content. This would be especially true for the wide variety of BYOD (Bring Your Own Device) users you envision. The good news is that once in published format, an Articulate lesson is not editable.