Blind Verify
A precision drawing-verification instrument. Trace shown shapes while the drawing surface stays blacked out — your stroke appears only when you lift. Across twelve rounds of increasing complexity, the app measures your deviation from the target and reports the systematic direction of your error. A calibration round with visible feedback runs first, and its transfer into the blind rounds is measured. Finish with a shareable result plate of your attempts, accuracy, and error direction.
Created by haojie.huang
