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&quot;To open a developers account at google is a one off payment of $25. Apple have a different subscription model.&quot; &nbsp;- is this payment for making it available in google play store?<br />
even static app pages need oop concept skills?
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"To open a developers account at google is a one off payment of $25. Apple have a different subscription model."  - is this payment for making it available in google play store?
even static app pages need oop concept skills?

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<div class="content wysiwyg-content">
please provide the skill sets needed for ios and android development.<br />
please provide some tutorials links.<br />
how difficult it is to develop a simple app for a person who does not know app development but a good web developer.<br />
approximately how many days it take to learn?<br />
how much money should be paid to apple and google to port the app?<br />
approximately how much app developers charge for a simple app of 6 screens?
</div>
</div>


please provide the skill sets needed for ios and android development.
please provide some tutorials links.
how difficult it is to develop a simple app for a person who does not know app development but a good web developer.
approximately how many days it take to learn?
how much money should be paid to apple and google to port the app?
approximately how much app developers charge for a simple app of 6 screens?

ios and android development

Mobile web development, also known as responsive web design, is an approach to web design aimed at crafting sites to provide an optimal viewing and interaction experience—easy reading and navigation with a minimum of resizing, panning, and scrolling—across a wide range of devices (from desktop computer monitors to mobile phones). A site designed with RWD adapts the layout to the viewing environment by using fluid, proportion-based grids, flexible images, and CSS3 media queries.

Responsive Web

iOS is a mobile operating system developed by Apple; it is a derivative of the Mac OS X desktop operating system, with which it shares many (but not all) common frameworks and other components. These include Cocoa Touch, the Mach/Darwin/XNU kernel and code from the Berkeley Software Distribution (BSD). Each iOS application runs in its own secure sandbox to prevent altering other applications, the operating system, or any other data.

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android's user interface is based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, variants of Android are also used on notebooks, game consoles, digital cameras, televisions, automobiles and other electronics. Applications are usually developed in Java programming language using the Android software development kit (SDK), but other development environments are also available, including Delphi, Ruby and Visual Studio (using C++).