A log for the first years — feeds, diapers, sleep, teeth and vaccinations — built for one thumb in a dark room.
Weights are plotted against the WHO Child Growth Standards — the international weight-for-age reference, separate for boys and girls. The tables ship inside the app, so the chart is drawn on your phone and works with no connection.
The vaccination screen is a record, not a schedule. It keeps the doses you enter; it never works out what is due and never reminds you. Your country's immunization schedule is the one that applies.