I like that it is very simple to use, you don't need any programming experience or knowledge of coding in order to create your own app with this tool! It's easy as 1-2-3!! You can add multiple screens (screens are called "pages") in one single file without having problems when adding new items/elements into those pages; all elements have their unique IDs which allows me easily edit them later if needed; also there're many other useful features such as notifications etc., but they didn't mention these anywhere so might be something not important at first sight - just try out yourself, maybe some things will become more clear after using it ;) Great way how to make apps fast & cheap!