On the pro page it says “Build for iOS, Android, Kindle, NOOK”. ( http://www.coronalabs.com/pricing/ )
I didn’t see anything whatsoever about apple, goole etc “subscription included”. Apple developer is like $25 a year, google is about the same if I recall (no idea about amazon). All’s I see is the promise that you can build for these platforms.
Can you post a link to the page where it says the apple, google, amazon subscriptions are included?
I can’t see it being possible they would promise that… The impossible part is that you personally need to agree to apple / google / amazons “terms of service” in order to be a registered developer for them (including providing google/apple/amazon your bank information and whatever else they individually require)- which is totally outside of CoronaLabs control - so obviously they can’t promise or give you a subscription (to someone elses service) anyways. (nor can they control the cost of those subscriptions, so promising them would be rather foolish).