Today, if you want to make a living, it's not enough to simply have a job. You will need at the very least 2 or 3 different sources of income to ensure that you are able to pay your entire bills in case something unfortunate happens. Technology has evolved so much that in the past few years lots of people have discovered another way to earn money: they develop mobile applications. Many entrepreneurs have made a term for themselves by developing mobile apps, Deniz Gueney and if you're thinking about learning how to produce mobile apps yourself, keep looking over this article.

Mobile app development is really a rapidly growing industry because folks are finding more approaches to earn money through their smartphones. Every day the number of active users keeps growing. Below are a few numbers that'll illustrate just how big the is becoming:

- The amount of smartphone users worldwide is expected to achieve 1 billion in 2014 ( source ).

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

If you intend to develop mobile apps then you'll need several things before you can start. This will additionally apply to any kind of development, nevertheless, you especially need the following:

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

- Some type of computer – Of course! Ideally it should be a laptop/netbook that runs Windows or Mac OSX since most computers nowadays run one of these operating systems. However, if your skills are sufficient then you could be able to produce an application on Linux as well.

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

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

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