Apple has recorded a 73% increase in retail salesin its third quarter ending June 26.

The computer giant’s retail revenue was $2.58 billion (£1.69bn) compared to $1.49 billion for the same period last year.

“The tremendous revenue growth was driven primarily by the very successful launch of iPad, in addition to the strong sales of iPhone and Mac,” said Apple chief financial officer Peter Oppenheimer.

Apple sold 3.27m iPads to customers in 10 countries and 8.4m iPhones in the quarter, including over 1.7 million iPhone 4s in the initial five countries where it was launched.

The retailer also announced this week that iPad will be available in Austria, Belgium, Hong Kong, Ireland, Luxembourg, Mexico, Netherlands, New Zealand and Singapore this Friday.

Apple said 60.5 million visitors came into its stores during the quarter compared to 38.6 million visitors a year ago, an increase of 57%.

Apple opened seven new stores during the quarter and now operates 293 retail sites. Apple has 27 stores in the UK.

The company aims to open a further 24 stores this quarter, including its new stores in Paris and Shanghai, which opened earlier this month. Apple’s seventh store in London is among those slated to be unveiled.