Today, if you wish to make a living, it's not enough to simply have a job. You will need at the least 2 or 3 different sources of income to make sure that you are able to pay all of your bills in case something unfortunate happens. Technology has evolved so much that in recent years many 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 enthusiastic 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. Every day how many active users keeps growing. Below are a few numbers that'll illustrate just how big the has become:

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

- In accordance with statistics there have been nearly 35 million iPhone developers by December 2010 ( source ). This figure shows a growth 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 kind of development, but you especially need the next:

- 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 – Obviously! Ideally it ought to be a laptop/netbook that runs Windows or Mac OSX because most computers nowadays run one of these simple operating systems. However, if your skills are good enough then you may be able to develop a software on Linux as well.

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

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

- The developer license – You are able to develop apps without paying anything, but if you wish to publish them on app stores then you'll need to pay for the annual fee which will be currently $99 for Apple App Store and Google Play Developer Console. Several payment methods are available, including credit cards, Deniz Güney Entrepreneur PayPal and wire transfer from your bank account.