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Why do apps that purport to do the same job come in with such different figures. I downloaded Pacer and I tried it out with mapmyfitness and runtastic on a measured walk this morning and these are thecreigures.

Mapmyfitness Distance 1.79 kilometers calories burnt over 26 minutes 239 Steps 2521

Runtastic Distance .95 kilometers calories burnt over 26 minutes 157 Steps 1561

Pacer Distance 1.67 kilometers calories burnt over 26 minutes 41 Steps 2377

Lost my fitbit one and can't afford a new one so looking for an alternative. I have been using mapmyfitness for 6 months abd will stick with it. Just wanted a pedometer that I could keep on for a couple of step challenges I am in. End up getting a $2 plastic one from the Reject Shop and is pretty accurate when measured against mapmyfitness.