iOS Measure Screenshot

ScreenTwin turns any screenshot into an interactive design-inspection canvas — measure, sample colors, read typography, and export developer-ready specs, entirely on-device. Drop in a screenshot and get pixel-perfect measurements with distance, width, height, and guides, plus 20× zoom, smart snapping, and a rotating ruler with live angle readout. Work in px, pt, dp, mm, cm, inches, or a custom unit. Sample any color and read it as HEX, RGB, HSL, HSB, CMYK, LAB, LCH, OKLab, or OKLCH, complete with WCAG contrast ratios — then export straight to Flutter, SwiftUI, UIColor, Jetpack Compose, or CSS. Go further with AI layout analysis that detects buttons, cards, and icons, scores designs against an 8-point grid, and OCR that estimates font size, weight, and line height. Collaborate with comment pins, arrows, highlights, and side-by-side comparison modes. Everything runs on-device — no cloud uploads, no account, no data collection. Works fully offline.