The amount of and availability of free iPhone applications is quite impressive due to the amount of freelance and independent software designers that are creating them. Although the iPhone is relatively new technology, designers have formed applications for nearly every popular niche and topic. These applications have the ability to add immense functional value to this already groundbreaking technology.

Thankful for iPhone applications users, Apple has explicitly stated that they will not purposely release iPhone firmware upgrades for the sole purpose to “break” or cause third-party home grown applications to stop working. The only exception to this rule is applications that are designed to unlock the SIM of the iPhone. Doing so allows other cellular phone service providers besides for AT&T to become compatible with the iPhone. Apple has already and will continue to lease regular updates to the iPhone in order to limit and make SIM unlocking more difficult.

While many free iPhone applications are only for aesthetic reasons such as a changing the layout, style, or color of the iPhone’s interface, other applications add greater functionality, organization, and/or software to the iPhone. Many of these beneficial applications make use of the iPhone’s internet connectivity to further make online tasks easier.

Facebook Application
One of the most famous free iPhone applications, this official software came included with the second generation of iPhones. It allows iPhone users to use a much more mobile phone friendly version of the Facebook website. While it was heavily marketed as a very helpful feature that is supposed to save mobile Facebook user’s hours of time, it has been regarded as only marginally helpful.

Fring
Fring allows users one simple one-stop-shop for all their instant messaging needs. Like Pidgin on regular computers, Fring supports AIM, Yahoo, MSN, Google Talk, ICQ, Skype, and more popular communication systems. Fring is a free iPhone application that allows users to communicate with nearly any instant messaging user.

smartRSS
If you are familiar with and a regular user of Really Simple Syndication (RSS), this application is a must. It allows for your favorite RSS or Atom feeds to be delivered seamlessly to your iPhone and management of the feeds with an easy to use graphical interface.

Customize
Customer is one such free iPhone application that allows a user to change absolutely everything about the interface of the iPhone. If you’re not happy with the battery icon or the reception bar on the top of your screen, change it. Still don’t like the ones available? You can browse through even more icons online if you aren’t happy with the selection that Customize provides by default.

Tap Tap Revolution
A slight parody of Dance Dance Revolution (DDR), Tap Tap Revolution is a free iPhone application that allows for users to have a DDR-like experience on their iPhone. Instead of interacting with one’s feet, you use your fingers to “tap” your way through the song’s beats.

New, Innovate Applications
Listed above are just a few of the hundreds of available free iPhone applications. Looking for more applications than the one’s listed above? Browse through hundreds of applications and choose the ones that are right for you at the iPhone Help site.

Suggested Reading: Free iPod Touch Applications

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