ios and android development

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?
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Chris Harte2015 Top Expert (Most Article Points)Commented:
Depends what you mean by good web developer?
Writing apps requires coding skills in a compiled language as opposed to scripting in html or javascript. If you have previous OOP coding experience the transfer of skills will be easier, but never simple.
How long? Think of weeks or months rather than days.

There are hybrid technologies that use javascript in a browser that can run on either iOs or Android such as Xamian but these are not as versatile as writing in native code.

To open a developers account at google is a one off payment of $25. Apple have a different subscription model.

This is where I started app development

This is also a good resource.
codelevelAuthor Commented:
"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?
Chris Harte2015 Top Expert (Most Article Points)Commented:
Yes, once you are registered as a developer at google you can start uploading your apps. You will get a log in to the developer console and links to the help centre and merchant centre.

"even static app pages need oop concept skills?"
Maybe, but writing compiled code is a big step up from writing script.

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