ScreenRuler vs RulePad

Turn your iPhone into a precise ruler — no physical ruler needed. ScreenRuler uses your device's actual pixel density (PPI) to display accurate centimeter and inch graduations directly on screen. Place any object alongside the ruler and drag two handles to measure it instantly. HOW TO MEASURE 1. Place the object next to the left edge of the screen 2. Drag the top and bottom handles to align with the object's edges 3. Read the live measurement displayed between the handles FEATURES • Accurate ruler based on your iPhone's true screen PPI • cm mode: 1 mm graduations, labeled every 1 cm • inch mode: 1/8 inch subdivisions, labeled every 1 inch • Two drag handles for precise range selection • Live measurement display — updates as you drag • Switch between cm and inch instantly • DPI calibration using a standard credit card (short edge 5.4 cm) for extra precision • Haptic feedback at every 1 cm / 1 inch boundary • Dark and light theme • Works offline — no internet required • Collapsible control panel — stays out of the way CALIBRATION Every iPhone screen has a slightly different physical size. Use the built-in DPI calibration with a standard credit card to fine-tune accuracy to your exact device. Perfect for quick measurements when you don't have a ruler on hand.

RulePad is your all-in-one measurement toolkit. Screen rulers, AR measurement, protractor, and photo measurement — everything you need in one app. RULER • Multiple rulers on a free-form canvas • L-ruler for measuring corners • Metallic silver design with precise tick marks • Full-screen ruler mode with edges on all four sides • Pinch-to-resize protractor for angle measurement • Custom calibration for any device AR MEASURE • Tap to measure distances in the real world • Flexible tape mode — follow curves and edges • Close loop for floor plans with area calculation • Drag to adjust placed points • Screenshot measurements with annotations • Triangle and polygon angle display PHOTO MEASURE • Measure objects in photos • Calibrate with preset reference objects (coins, cards, paper) • Pinch to zoom for precision placement • Track sizes over time HISTORY • All measurements saved automatically • Export to 2D technical drawings Privacy Policy: https://quietbyte.io/privacy-rulepad.html