The application is useful for creating grids at various scales, and you can add any number of them to your project. If you have a photo with multiple photos, then you can crop it in the same fashion, and you can set the color and opacity of the grid so that you can save it for your project. You can crop it using predefined aspect ratios such as A4, 16:9, 9:16, 4:3, and 3:4.
The app allows you to crop photos with the aspect ratio that you want, and you can change the color and opacity of the grid according to your needs.