Graph API vs iOS SDK in Facebook App

Question

What is actually the advantage/disadvantage of each method? I've used the graph API before and it seems that it can do anything I want in Facebook.

Answer 1

You seem to confuse SDK and API. API is an interface to a service that programmers can use. SDK is a library that uses this API. Facebook iOS SDK is a new version of the Facebook SDK that uses the Graph API and also allows you to call the older REST API.

 You
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 Various SDKs
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 REST API | Graph API
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 Facebook internals

An SDK does not have to implement all of an API. And the Graph API in this case does not support all the things that the older REST API supported, like video upload. Hope that helps a bit.