AtelierKit vs DoubleCheck

AtelierKit is the quiet, focused toolkit that lives on your phone and serves your art practice — no account, no internet, no distractions. Whether you're painting from a reference photo, sketching a portrait, or mixing colours at your easel, AtelierKit gives you the tools professional artists actually reach for. COLOUR ANALYSIS Sample any colour from a photo or your camera feed. Get precise values to help you mix accurate paints. Stop guessing — start seeing. GRID OVERLAY Overlay a customisable grid over any reference image to transfer proportions with confidence. The grid method used by masters, now always in your pocket. VALUE STUDY Strip away colour and see only light and shadow. Train your eye to read tonal relationships — the foundation of every great painting. CLOUD SYNC Optionally sync your projects across devices with iCloud. Your projects are always backed up and available wherever you work. BUILT FOR ARTISTS, NOT APPS • Works fully offline — no Wi-Fi needed to use any tool • No account required to get started • Optional cloud sync keeps your data private and encrypted • Available in English, Arabic, French, and Spanish • Clean, distraction-free interface AtelierKit is made for painters, sketchers, illustrators, and anyone who works with physical media and wants a smarter, faster way to analyse their references. Your art. Your device. Your studio.

DoubleCheck helps traditional artists compare their artwork directly to a reference photo using live overlay and split view. Spot mistakes faster, improve proportions, and refine your work while painting or drawing. Overlay mode Place your artwork directly over a reference and adjust transparency to compare proportions and alignment. Split view comparison Compare artwork and reference side by side. Live camera comparison Use the camera to compare your work in real time. Flip view Mirror your reference to spot drawing mistakes more easily. Save comparisons Capture and save your comparison process. No account required. Your images stay on your device. One-time in app purchase no subscription