According to the 3 day wait rule, you can record your baby's new food on the app, and record your baby's health status every day to determine if he or she is allergic to the new food, and after 3 days you need to score the tolerance level of the new food.

The software faithfully reproduces the concepts and operational logic of the Bullet Journal as much as possible. It is a task list, diary, planner, notepad, and can also be a notebook that encompasses all these features.