iOS app and landing page

What is a "landing page"?

A web term - and since links are banned, I'll copy from a portion of a site that describes the various types...google is your friend for further info.

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What is a Landing Page?

In the purest sense, a landing page is any web page that a visitor can arrive at or “land” on. However, when discussing landing pages within the realm of marketing and advertising, it’s more common to refer to a landing page as being a standalone web page distinct from your main website that has been designed for a single focused objective.

This means that your landing page should have no global navigation to tie it to your primary website. The main reason for this is to limit the options available to your visitors, helping to guide them toward your intended conversion goal.

There are 2 basic types of landing page, Click Through and Lead Generation (also referred to as Lead Gen or Lead Capture pages).

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The OP needs to be a bit more specific, and hopefully familiar w/iOS terms before someone can target more than a general reply, I think.

The page before the first page of the App comes out, the page is shown for a while displaying the company logo or slogan or whatever. I mean that page. May be I name it in wrong way.

Thanks

Launch Image.

Read all about it: https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/MobileHIG/LaunchImages.html