Today, if you want to make an income, it's inadequate to simply have a job. You will need at the least 2 or 3 different resources of income to ensure you can pay your entire bills just in case something unfortunate happens. Technology has evolved so much that in the past few 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 interested in learning how to produce mobile apps yourself, keep looking over 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. Below are a few numbers that'll illustrate just how large the industry is becoming:

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

- Based on statistics there have been nearly 35 million iPhone developers as of December 2010 ( source ). This figure shows an increase of 25% over the last year's figures!

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

- Skills and knowledge – You'll need to find out 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 – 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 sufficient 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 entirely on your device. If you don't have a smartphone then you may always use a friend's or a family member's device.

- An IDE – A pc software development kit (or IDE - Integrated Development Environment) is necessary 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 when you wish to publish them on app stores then you'll need to pay for Deniz Gueney the annual fee that 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.