Today, if you wish 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 make sure that you can pay all of your bills just in case something unfortunate happens. Technology has evolved so much that in recent years lots of 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 interested in learning how to produce mobile apps yourself, keep reading this article.

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

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

- According to statistics there were nearly 35 million iPhone developers as of December 2010 ( source ). This figure shows a rise of 25% over the previous 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 the next:

- 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).

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

- A smartphone – It's not required for developing apps, however it will definitely help since you can test them directly 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 essential to generate applications for Deniz Güney Entrepreneur 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 when you intend to publish them on app stores then you'll need to pay the annual fee which will be 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 bank account.