The ketogenic diet focuses on consuming extremely low amounts of carbohydrates per day.
Protein consumption is moderate and fat is your main energy source. The first few days are going to be hard since your body adapts to the keto diet and using fat as energy. Fat gets turned into ketone bodies which deliver more energy per gram than glucose. Thats why many say that this low carb diet increases mental alertnes and intelligence.
I am still working on this app and intend to add a daily calory and macro tracking tool, so that you don't have to write down/memorize macros and can focus more on your tasks.