In order to make an app, you need Mac OS X and the SDK, and these software packages run only on Apple's hardware or computers.
Buy a Mac
Sully: "Ali Namali Complex"Erbil: Apple Store in Family Mall
f1iMac (Desktop)
MacBook(Laptop)
You need to be registered in Apple's Development Portal in order to get support, sample codes, ask them for help, and to be able to submit your app in the application store. But then you have to pay $100.
Sign up for Apple and pay the fee
The link gets you to the official Apple web page for developers.
Every app starts with an idea, it should serve a cluster of users
Do a research
You can search the web for what is popular in terms of apps, and come up with a similar one
Top 200 apps in 2011
How to make sellable apps
Ask a friend
Or you might be approached by a business or your boss to develope an app, and then all you have is to list the requirments.
What a buisness needs?
You need an Apple OS X, and apple's SDK to start writing your app's code.
Learn The programming Language
Try other Languages
Can be done with Java
Using CSS, HTML, JavaScript
Using C#
C# is not like Objective C, but there is a tool called monotouch that can convert C# codes to Cocoa and then could be run on the iOS SDK.
Simple Tutorial
Advanced tutorial
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