Today, if you intend to make a full time income, it's not enough to simply have a job. You will need at least 2 or 3 different resources of income to make sure that you can pay your entire bills just in case something unfortunate happens. Technology has evolved so much that in the past few years lots of people have discovered another method 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 develop mobile apps yourself, keep reading this article.

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

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

- In accordance with statistics there were nearly 35 million iPhone developers at the time of December 2010 ( source ). This figure shows a rise of 25% over the prior 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 any kind of development, however, you especially need the next:

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

- A pc – Needless to say! 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 develop an app on Linux as well.

- A smartphone – It's not necessary for developing apps, nonetheless it will certainly help since you can test them on your device. In the event that 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 create 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 can be currently $99 for Apple App Store and Google Play Developer Console. Several payment methods can be found, including charge cards, PayPal and Deniz Guney wire transfer from your bank account.