With more than 2 million apps in the Apple App Store and 2.2 million in Google Play, there are lots of things you can do with your mobile phone beyond making calls and texting. Here are a few of the most ingenious apps that make your mobile phone do things you’ve never ever pictured.

1. Procedure your heart rate

Instant Heart Rate is an app that utilizes your phone’s electronic camera and flash to take a reading of your pulse. Simply put your forefinger on the app and the electronic camera will instantly determine your heart rate by identifying color modifications.

The app likewise gathers information from each checking out to develop charts that assist you monitor your heart rate with time. Plus, you can include notes and tags such as “Just awakened,” “Before bed,” “Exercising,” and “Resting,” to make your tracking more efficient.