I have an APO as well, and use it extensively, but I'd note that a) they have never released an API as originally promised (and eventually scrubbed all mention

I have an APO as well, and use it extensively, but I'd note that a) they have never released an API as originally promised (and eventually scrubbed all mention of the promise) and b) as of August of last year, new purchases will be charged a subscription fee for using the mobile app, which is necessary for most of the things you'd get an APO for.