Games are the most popular iPhone apps, but new business apps are becoming popular with small business owners. One out of four iPhone owners has downloaded a business app out of the 1,600 business apps available in the App Store.

The number of iPhone business apps is increasing and their functions are more desirable to businesses. Oracle iPhone apps, for instance, let users tap into Oracle's business suite.

iPhone's best business app is its Web browser. Business owners can order products for customers, process payments, track shipments, and ensure products reach customers. One new business app, WebEx, lets users participate in web conferencing calls on the iPhone. The app has been downloaded over 50,000 times, making it one of the top ten business apps.

Some of the most popular small business apps are:

Mileage Counter - This is a tool for small business owners who need to report mileage.

Budget Tracker - This tool helps business owners set a budget and track how close they are to spending it all.

Attendance Countdown - The app tracks working hours and counts down how many working hours you have left.

Countdownr - Counts down to a date and time. Specify a daily, weekly, monthly, or annual countdown message. When the time comes, an alert goes off.

QuickVoice Voice Recorder - A quality voice recorder that Gizmodo loves for its pause feature.

Oracle Business Indicators - Business performance info at the touch of an iPhone screen, including a range of analytics. No more need to pop open the laptop before that big meeting.

SugarSync - Access your Mac or PC from anywhere and view or share a variety of files. Back up an unlimited number of computers.

Language Translator - This app translates more than 20 languages through the Google language translator.

PackageTrackr - Tracks your package through UPS, FedEx, DHL, the US Postal Service, and more.

Cards - Stores credit and ATM card details, as well as bank account information.

Balance - Track your budget or bank account balance.

For more iPhone apps, visit the App Store