Using iPad as dedicated study device

I am some overwhelmed by all of the material presented in Level 1. So I am considering using a dedicated iPad for my harmonica study. It will be a huge advantage to have everything in one spot. I seem to spend more time looking for stuff than I do actually working on it.

If you or students have ipad recommendations I would love to hear them. Also which models might be suitable, especially older models due to cost.

I know if I were a better organizer, that would help; so maybe some suggestions about how to organize stuff would also be helpful.

Thanks,

Hank H., mtnhank