The Hektar.app was created to survey land. Hectare.app is self explanatory and can be used without technical background. The stronger the GPS signal is, the faster and more precise Hectare.app will show results - the minimum area is 0.01 ha (= 100 m²). As far as no (expensive) pricise or certified survey results are required, Hectare.app will provide reliable data and a structured protocol. The free version of Hectare.app allows you to get to familiarize yourself with the app. Hectare.app is fully functional but doesn't show results other than the side lenghts or the circumference. To see the size of the area simply unlock the feature by purchase. No recordings created with the free version will get lost, you can still open and edit them after the purchase.