Do I need to be skilled in GIS to use the app?

No. Coreo, the platform on which the UKHab Survey runs, has been designed specifically to accommodate people without extensive GIS training. The app itself has been built so that the workflow is both intuitive and supportive. There is strict logic built into the UKHab Survey, meaning you only ever see relevant questions based on the answers you provide. There are also resources built into the app to explain what each of the UKHab features and codes relate to.