1. It is a camera app with a grid that can be used in various places such as at home, playground, and industrial sites.

2. Take a picture of your body shape by aligning it horizontally and vertically through the grid.

3. Align the green horizontal line so that it meets the red baseline.

4. You can obtain photos of the front/left/rear at the same location through the reference point and top/bottom separation line.

5. Label (front/left/rear) and date are saved in the photo.

6. You can save the grid together or clear the grid and save the photo.