Today, if you intend to make a living, it's not enough to simply have a job. You'll need at the very least 2 or 3 different sources of income to ensure that you can pay all your bills just in case something unfortunate happens. Technology has evolved so much that in recent years many people are finding another solution 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 scanning this article.

Mobile app development is really a rapidly growing industry because folks are finding more ways to earn money through their smartphones. Each and every day the number of active users keeps growing. Below are a few numbers that may illustrate just how big a has become:

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

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

If you want to develop mobile apps then you'll need several things one which just start. This will additionally apply to almost any development, however, you especially need these:

- Skills and knowledge – You'll need to know just 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 must 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 good enough then you could be able to develop an application on Linux as well.

- A smartphone – It's not required for developing apps, but it will surely help since you can test them directly on your device. If you don't have a smartphone then you may always use a friend's or a family group member's device.

- An IDE – A 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, Deniz Güney but when you want to publish them on app stores then you'll need to pay for the annual fee which 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 own bank account.