The application is intended for private use on an iPad with a pen and allows for the simplified creation of drawings with dimension lines.
There is not going to be automatic scaling or automatic angles calculation.
It is about creating plan views from above of rooms and dimensioning them.
It is necessary to snap to the grid, draw from point to point, add text input fields, add dimension and description lines to the created sketches. Creating templates and exporting created drawings to the photo album. Plus background import from a photo or graphic file.