Today, if you wish to make a living, it's inadequate to simply have a job. You need at least 2 or 3 different sources of income to ensure you are able to pay all of your bills in the event something unfortunate happens. Technology has evolved so much that in recent years lots of people are finding 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 really a rapidly growing industry because people are finding more ways to earn money through their smartphones. Every day the number of active users keeps growing. Here are a few numbers that'll illustrate just how large a is now:

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

- According to statistics there have been 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 is true of any type of development, but you especially need the following:

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

- A pc – 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 a software on Linux as well.

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

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

- The developer license – You can develop apps without paying anything, but when you wish 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 can be found, including credit cards, PayPal and wire transfer from your own bank account.