Hypsometer is a free Android app developed by makinosoft. It falls under the category of Utilities & Tools and helps users measure the height of trees and more. The app is based on the basic height of 160 cm, which can be changed from the menu.

To use the app, users need to first aim at the root of the subject and click the distance button. The distance is then computed and the user can aim at the top of the subject to measure its height. It is important to note that the measurement position should be level, and the app should be held horizontally as it does not rectify the inclination of right and left.

Overall, Hypsometer is a handy app for those in the forestry or landscaping industry who need quick and easy measurements of tree heights and other objects.