RESTON, VA: Phones using Google's Android operating system are proving increasingly popular in the US, according to a study from comScore.

The new report shows that Android's share of the smartphone market leapt from 12% to 17% between April and July 2010, representing growth of 42%.

Both RIM and Apple lost ground over the three-month period, with their market share falling from 41.1% to 39.3% and from 25.1% to 23.8% respectively.

But comScore suggested that these figures do not necessarily mean bad news for Google's rivals.

"Despite losing share to Google Android, most smartphone platforms continue to gain subscribers as the smartphone market overall continues to grow," the report added.

Overall, comScore found that 234 million Americans aged 13 or older used mobile phones during the three months to July 2010.

Of this total, 53.4 million owned smartphones, an 11% increase from the previous year.

More broadly, services offered by smartphones are gaining popularity at a rapid rate.

The number of US mobile subscribers who downloaded apps grew from 29.8% to 31.4% over the three-month period.

By July, 21.8% browsed social media platforms or blogs, up from 19.9%.

The popularity of traditional mobile phone tasks experienced more modest increases, with 66% of users sending SMS messages in July, compared to 64.6% in April.

Data sourced from comScore; additional content by Warc staff