SAN FRANCISCO — Facing intense competition from phone makers wedded to Google’s Android software, Steven P. Jobs, Apple’s chief executive, finally plans to make the iPhone available on Verizon Wireless, the largest wireless carrier in the United States.

After more than three years of using only AT&T cellphone networks, Apple is now making a version of the iPhone 4 for Verizon’s network, according to a person who is in direct contact with Apple. Apple and Verizon will begin selling the phone early next year, said the person, who agreed to speak on condition of anonymity because the