the core idea of this app that gives you information about countries like name and flag and languages used in country and show the country to you on the map , code , capital , region , timezone , translations , and other data , so its good reference for users , and this help geographical teachers and student to learn and be aware of these data and they can add their notes about these countries when the go to map and see location and what around this country and some notes about region nature and seas and Ocean related and around the country so this will make learning simple.