Generate personalized copybooks with custom content, supporting Chinese square grids and English four-line grids. Supports different learning stages with adjustable font size and line spacing to improve writing skills.

Scientifically calculate child rearing costs from birth to age 22, helping parents with financial planning, including analysis of living, education, medical and other costs.

Scientifically assess the height of children aged 3-17 years, based on WHO standards and provide health advice.

Scientifically assess the weight of children aged 3-17 years, based on WHO standards and provide health advice.

Scientifically assess the height of babies aged 1-3 years, based on WHO standards and provide health advice.

Scientifically assess the weight of babies aged 1-3 years, based on WHO standards and provide health advice.