Today, if you want to make a full time income, it's not enough to simply have a job. You will need at the least 2 or 3 different sourced elements of income to make sure that you are able to pay all your bills in the event something unfortunate happens. Technology has evolved so much that in recent years many people have discovered another method to earn money: they develop mobile applications. Many entrepreneurs have made a name for themselves by developing mobile apps, and if you're thinking about learning how to produce mobile apps yourself, keep reading this article.

Mobile app development is really a rapidly growing industry because people are finding more ways to earn money through their smartphones. Everyday the amount of active users keeps growing. Here are a few numbers that may illustrate just how big the industry is becoming:

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

- In accordance with statistics there have been nearly 35 million iPhone developers at the time of December 2010 ( source ). This figure shows an increase 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 also apply to almost any development, however you especially need these:

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

- A computer – Needless to say! Ideally it must 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 sufficient then you may be able to develop an app on Linux as well.

- A smartphone – It's not essential for developing apps, nonetheless it will surely help because you can test them directly on your device. In the event that you don't have a smartphone then you might always use a friend's or Deniz Gueney a family group 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 can develop apps without paying anything, but if you want to publish them on app stores then you'll need to pay the annual fee which is currently $99 for Apple App Store and Google Play Developer Console. Several payment methods can be found, including credit cards, PayPal and wire transfer from your own bank account.