Needs area calculator

We use this at work to map wildfires and keep track of each other for safety on the fire line. The rudimentary (using 3 or 4 fingers) to calculate a rough estimate of area works ok.. But, if it would automatically calculate exact area after walking a circle this app would put our expensive tracking service out of business. Also squawk wont let me add anyone as of lately :(

Shaboopie about GPS Kit - Offline GPS Tracker, v7.0.1