LightPad: Tracing Light Box

Lay a source sheet and a blank sheet on the display: a bright, evenly lit surface shines through both, and you trace on real paper with confidence. Built for how tracing actually works: LIGHT YOU CAN TUNE - A light surface that never sleeps or dims on its own mid-trace - Color temperature from 2700 K (warm) to 6500 K (daylight), rendered from real black-body values — warm light keeps thin pencil lines readable - Brightness from a soft low glow up to your display’s true peak — on HDR displays the slider goes beyond regular screen white - Dimming happens in the light surface itself, never by pushing the panel low — no added flicker in the dark range TRUE-TO-SIZE GRIDS - Metric 1 cm grid, or imperial 1-inch grid with 1/4-inch subdivisions - Physically accurate on every supported iPhone and iPad — 1 cm on screen is 1 cm on paper - Center crosshair for squaring up your sheets - Pure black lines with adjustable line width, so grids stay visible through paper MADE FOR PAPER ON GLASS - Touch lock: one tap locks the screen so resting palms and paper press nothing; hold to unlock - Controls fade away and return with a tap — while you work, it is all light - Works in any orientation and window size PRIVATE BY DESIGN - No account, no ads, no tracking, no analytics - Requests zero permissions and never connects to the network - Works completely offline For illustrators inking and refining sketches, animators flipping between drawings, calligraphy and lettering practice, embroidery and quilting pattern transfer, and anyone who traces on real paper.