A couple of years ago Bojan Bostjancic and Peter Kuhar started building Instant Heart Rate, an iPhone app that measures the heart rate of a user through the smartphone camera. Users would hold their finger over the camera for 10 seconds and the app would be able to detect and measure their heart rate. This app has hit 8 million downloads in 9 months between iPhone and Android.

MindJolt is a gaming company that is run by MySpace co-founder Chris DeWolfe. DeWolfe left MySpace a few years after News Corporation acquired the social network company.

Shopify is a software company that helps retailers create online stores. The Ottawa, Canada based company has raised $7 million in funding from Bessemer Venture Partners, FirstMark Capital, and Felicis Ventures. “While we are already profitable, the support gives us additional resources to improve our products and add value for our users,” stated the Shopify CEO and co-founder Tobias Lutke. “Our mission continues to be to make it as easy as possible for retailers of all sizes to start and run a business online.” The Shopify “app store” processes over $100 million per year from clients that include GE, Tesla, and Amnesty International. [Financial Post]

In less than 2 years since launching, Mint.com is supposedly selling themselves to Intuit Inc. Mint.com is a financial tool that allows you to aggregate all of your bank and credit card information and find ways to save money. The deal is expected to close within the next few days.

Mint had launched at the TechCrunch50 conference two years ago and took the top prize giving them $50,000. Mint raised $31.8 million in total funding from First Round Capital, Felicis Ventures, Shasta Ventures, Benchmark Capital, Sherpalo Ventures, Hite Capital, DAG Ventures, and The Founders Fund. Angel investors in Mint include Ron Conway, Mark Goines, Geoff Ralston, and Dave McClure.

This acquisition is interesting because Intuit had previously sent Mint a letter demanding an explanation for how they jumped to 850,000 users within several months.