Look at all of the cool things you can measure (well kind of) with your phone.
Instant Heart Rate
For a mobile phone application, I think this app is relatively accurate. I found my heart rate to be a bit high, but the results were consistent. Additionally, I never knew that a pulse oximeter could track the changes of the surface of my skin every time my heart beat. Neat!
This app may not be so accurate, but it’s still fun and worth the download! Try it out! It’s a great idea!
This app is fun! It does detect metal. I can’t wait to take it to the beach to see if it works! What a trip!