iPad Minimum System Requirements for ALL 4 Decks in djay Pro for iPad?

What are the minimum requirements to get ALL 4 DECKS working on the djay Pro for the iPad?

I have an early generation iPad, an iPad mini 2 and an iPhone 7, which are not sufficient obviously for djay PRO 4 Decks.

I’m looking at an iPad Pro or iPad Air, but want to make sure that I get all 4 decks working on it, since that is the whole reason I am purchasing it.

To be clear why I am asking this question: I really want to get all 4 decks working on an iPad as soon as possible - Can someone tell me the minimum specs for the iPad that I need to get?

Please someone, let me know.

WHAT ARE THE iPAD MINIMUM REQUIREMENTS for ALL 4 DECKS on DJAY PRO?

Thanks in advance!