The duel begins Monday with the release of a free iPhone and iPad app that features Google Now, a technology that performs many of the same functions as Siri.
It's the first time that Google Now has been available on smartphones and tablet computers that aren't running on the latest version of Google's Android software. The technology, which debuted nine months ago, is being included in an upgrade to Google's search application for iOS, the Apple Inc. software that powers the iPhone, iPad and iPod Touch. It's up to each user to decide whether to activate Google Now within the redesigned search app.
Google Now's invasion of Siri's turf marks Google Inc.'s latest attempt to lure iPhone and iPad users away from a service that Apple built into its own devices.
Google quickly won over millions of iPhone users in December when it released a mapping application to replace the navigation system that Apple dumped when it redesigned iOS last fall. Apple's maps application proved to be inferior to Google's ousted service. The app's bugs and glitches made Apple the butt of jokes and fueled demand for Google to develop a new option.
Apple has been losing to Google on other fronts in a rapidly growing mobile computing market, an arena that was revolutionized with the iPhone's release in 2007. Smartphones and tablet computers running Google's free Android software have been steadily expanding their market share in recent years, partly because they tend to be less expensive than the iPhone and iPad. At the end of 2012, Android devices held about 69 percent of the smartphone market while iOS held about 19 percent, according to the research firm IDC.
Android's success has been particularly galling for Apple because its late CEO Steve Jobs believed Google stole many of its ideas for the software from the iPhone. That led to a series of court battles over alleged patent infringement, including a high-profile trial last year that culminated in Apple winning hundreds of millions in damages from Samsung Electronics, the top seller of Android phones. That dispute is still embroiled in appeals.
The rise of Android also is squeezing Apple's profit margins, and has contributed to a 40 percent drop in the company's stock price since it peaked at $705.07 last September around the time that the iPhone 5 came out.
Android's popularity is good news for Google because the company's services are built into most versions of the operating system. That brings more traffic to Google services, creating more opportunities for the company to sell ads -- the main source of Google's revenue.
Siri is billed by Apple as an "intelligent feature." Since the technology's release in October 2011, Apple has made it a centerpiece of some marketing campaigns that depict Siri and its automated female voice as an endearing and occasionally even pithy companion.
When asked for an opinion about Google Now, Siri responded: "If it's all the same to you, I'd rather Google later."
Google believes its Siri counterpart is smarter because Google Now is designed to learn about a user's preferences and then provide helpful information before it's even asked to do so. The technology draws upon information that Google gleans from search requests other interactions with the company's other services. Knowing a person's location also helps Google Now serve up helpful information without being asked.
"This concept of predicting your needs and showing you them at the right time is unique to Google Now," said Baris Gultekin, Google Now's director of product management. "We want computers to do the hard work so our users can focus on what matters to them so they can get on with their lives."
If the technology is working right, Google Now is supposed to do things like automatically tell people what the local weather is like when they awaken to help decide what to wear and provide a report on traffic conditions for the commute to work. During the day, Google Now might provide an update on the score of a user's favorite sports team or a stock quote of a company in a user's investment portfolio. On a Friday evening, Google Now might offer suggestions for movies to see or other weekend events tailored to a user's interests. For international travelers, Google Now might provide currency conversion rates, language translations of common phrases and the time back home.
Most of this automatic information is provided in summaries that Google calls "cards." Like Siri, Google Now also is equipped with voice technology that allows it to respond to questions and interact with users, though it hasn't shown the wit that amuses some of Siri's users.
The Google Now app for iOS isn't as comprehensive as the Android app, which only works on devices running on the latest version of Android -- known as "Jelly Bean." Some of the Android features missing from Google Now's iOS app include cards for showing airline boarding passes and movie tickets bought though online vendor Fandango. Both of those options are available on the iOS through Apple's built-in Passbook feature that's designed to be a digital wallet.
Google Now's expansion on to the iOS underscores Google's ambitions for the service. The company, which is based in Mountain View, Calif., views it as a pivotal tool in its effort to peer deeper into its users' brains. In doing so, Google believes it will be able to provide more useful services and also show more relevant ads. For Google Now to become more intuitive, it needs to widen its availability.
"The more you use Google Now, we will have a better chance of understanding what your needs are and providing you with the right information," Gultekin said. "It's a virtuous cycle."
Gultekin declined to discuss whether there are plans to make Google Now apps for mobile devices running on Microsoft's Windows system. He also refused to comment on speculation circulating in technology blogs that a Web version of Google Now will be offered as a replacement for iGoogle, a tool that allows people to encircle the Google search engine with a variety of services suited to their tastes. IGoogle is scheduled to close in November.
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