This has been a little side project for me and I thought some of you fellow YNABers might appreciate it: SplitBill for iOS.
It’s a really simple app that lets you snap a picture of a receipt and then split the transactions into different cards. Could be categories (if you want to split the transaction into different categories in YNAB) or people.
I hope someone here finds it useful :)
I’ve been considering this already, I might have a look at how difficult it would be to implement this. No promises though.