What are the prospects on an ipad pro app? I paid $1500+ for my ipad. I'm very willing to pay for a good, open-source incremental reading solution on my iPad (

What are the prospects on an ipad pro app? I paid $1500+ for my ipad. I'm very willing to pay for a good, open-source incremental reading solution on my iPad (with exportable content and easy backup). We are at the pre-history of spaced repetition learning. This will have very large effects on society. Just ask any engineer how much they already forgot of what they learned in college. Coursera et al will get into this space, I hope, but that's not enough. We need good, open alternatives like anki (but better) and with incremental reading. But keeping a slew of apps on different platforms updated and running smoothly is expensive. Anki's model of charging for the apple app is not bad.