Using a support, such as a glass, a bottle, a box or the ones I recommend on my websites, that maintains the most comfortable distance for you, you can see through your device the area where you want to draw your image from the camera.
The first week of launch will not have advertising, they will soon be added, trying to make them as less annoying as possible, in some way it is necessary to support the continuous development of it, although you can also contribute your bit by entering one of my websites and visiting some of my other apps.
Calca app or clone app is a tool that will help you transfer any image you have on your device or any image you capture with your camera to paper.
You can draw on paper yes, but you can also make a small mural on the wall if you hold the phone upright and look through it at the image you have chosen on the wall.
The image will become transparent and together with the camera of your device, it will allow you to see through it.
Draw any photograph you have or take with your device.
You can also search for any drawing to color and start practicing.