Apple said it sold about 3.3 million iPads in April through June, the gadget's first three months on the market. IPhone unit sales rose 61 percent, with a boost at the end of the quarter from the launch of the iPhone 4.

Apple's net income jumped to $3.25 billion, or $3.51 per share, from $1.8 billion, or $2.01 per share a year ago.

Revenue increased 61 percent to $15.7 billion, from $9.7 billion last year.

That's better than Wall Street expected. Analysts surveyed by Thomson Reuters had forecast net income of $3.11 per share in the quarter on $14.7 billion in revenue.

Apple shares rose $7.29, or 2.9 percent, to $259.18 in extended trading after the release of the results.