Is there Windows Phone 8.1 API to refer? This is because I want to develop the Windows Phone 8.1 application, but I don't know where to refer the API, since the Windows Phone 8.1 an 8 have a big different, so I can't refer to the Windows Phone 8 API.
Does anyone know of any cross-platform apps for budgeting (mainly expense tracking) that will sync between my windows 8 tablet and my wife's iPhone? I've seen a bunch of grocery apps out there that will accomplish something similar, however none for budgeting yet. I also don't want it web based like Mint.