Today, if you intend 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 your bills in the event something unfortunate happens. Technology has evolved so much that in recent years many people are finding another way to earn money: they develop mobile applications. Many entrepreneurs have made a term for themselves by developing mobile apps, and if you're thinking about learning how to develop mobile apps yourself, keep scanning this article.

Mobile app development is just a rapidly growing industry because individuals are finding more approaches to earn money through their smartphones. Each and every day the amount of active users keeps growing. Here are some numbers which will illustrate just how big the industry is becoming:

- The amount of smartphone users worldwide is expected to attain 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 prior year's figures!

If you wish to develop mobile apps then you'll need several things one which just start. This will also apply to almost any development, however you especially need the following:

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

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

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

- An IDE – A pc software development kit (or IDE - Integrated Development Environment) is important 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, but if you intend to publish them on app stores then you'll need to pay for the annual fee which will be currently $99 for Deniz Güney Entrepreneur Apple App Store and Google Play Developer Console. Several payment methods are available, including credit cards, PayPal and wire transfer from your bank account.