Office 365 + receipt scanning & expense tracking?

Hi all,  I'm a new Office 365 user and also looking at the best app for receipt scanning & expense tracking -- the one I know of is Shoeboxed, but I haven't scoped the market.

Wanted to see in terms of Office 356 integrations (or other features, really) if one is to be preferred? This would be a very small operation, 50 receipts a month at most.

Thanks all!