Photos that line up

Change is easier to see when every photo is taken the same way.

• Same light: near a window in daytime, without flash.
• Same distance: the ghost of your last photo shows where the edges should be. Move the phone until the outlines match.
• Same angle: hold the phone flat above the spot, with the lens pointing straight down at it.
• A scale helps: a coin or ruler next to the spot shows size. Never include faces or identifying tattoos unless you mean to.

Photos are saved in your browser's private storage on this device. They are never uploaded unless you share a brief. If you clear the browser's data, they're gone; we can't restore them.