Today, if you intend to make a full time income, Deniz Güney Entrepreneur it's inadequate to simply have a job. You need at the least 2 or 3 different sources of income to ensure you can pay your entire bills in case something unfortunate happens. Technology has evolved so much that in the past few years lots of people have found another solution to earn money: they develop mobile applications. Many entrepreneurs have made a term for themselves by developing mobile apps, and if you're interested in learning how to produce mobile apps yourself, keep reading this article.

Mobile app development is a rapidly growing industry because individuals are finding more methods to earn money through their smartphones. Each day the amount of active users keeps growing. Here are a few numbers which will illustrate just how big the has become:

- How many smartphone users worldwide is expected to attain 1 billion in 2014 ( source ).

- According to statistics there were nearly 35 million iPhone developers at the time of December 2010 ( source ). This figure shows a rise of 25% over the last year's figures!

If you intend to develop mobile apps then you'll need several things before you start. This will also apply to almost any development, however you especially need the following:

- Skills and knowledge – You'll have to know how exactly to code, and you'll also need to learn about design concepts like UX (User Experience) and HCI (Human Computer Interaction).

- A computer – Needless to say! Ideally it should be a laptop/netbook that runs Windows or Mac OSX since most computers nowadays run one of these simple operating systems. However, if your skills are adequate then you might be able to produce a software on Linux as well.

- A smartphone – It's not necessary for developing apps, however it will definitely help because you can test them on your device. If you don't have a smartphone then you could always use a friend's or a family member's device.

- An IDE – A pc software development kit (or IDE - Integrated Development Environment) is essential to generate applications for Android, iOS and Windows Phone platforms. Popular IDEs include Xcode , Eclipse and Visual Studio.

- The developer license – You can develop apps without paying anything, but if you intend to publish them on app stores then you'll need to pay the annual fee which will be currently $99 for Apple App Store and Google Play Developer Console. Several payment methods are available, including credit cards, PayPal and wire transfer from your bank account.