If you’re interested and health and fitness and are a supporter of Heifer, then this app might be for you. It’s called Earndit. A simple way to get fit and give back. So how does this work?

If you don’t already have one, download a workout app such as RunKeeper, Nike+, fitbit, Foursquare, EventTrail or Garmin to connect to Earndit. Next, create an Earndit account. They’ve made it really easy – you can use your Facebook, Yahoo!, WindowsLive ID, Twitter, Google or OpenID account. If you don’t have one of those accounts, or do not wish to link up your account with Earndit, they also provide you an account directly with the site.

Once your workout app and your Earndit account are linked, you go and workout. For every workout that you record in one of your apps, Earndit gives your points. They’ve included fun things to do such as earn trophies and compete with friends, but the best option is that you can give your points to Heifer.

Once you start to accumulate points, visit the giving section under “Redeem,” and you can choose Heifer. Give 500 of your points to Heifer to help provide a goat for a family in need.

See what Earndit users are saying about Heifer.

So go workout and think of the good you’re doing for charity. You’ve Earndit.