Ruler: Tape Measure & Scale

Turn your phone into an ultra-precise digital ruler, caliper, and drafting measurement toolkit! Whether you need to measure small items in centimeters, millimeters, or fractional inches, align surfaces with a 2D spirit bubble level, or inspect angles with a 360° protractor, Ruler delivers laser-accurate results directly on your screen. Designed with modern engineering aesthetics and smooth haptic feedback, this is the ultimate pocket measurement tool for carpenters, DIYers, engineers, crafters, students, and designers. ━━━━━━━━━━━━━━━━━━━ 📐 ALL-IN-ONE MEASUREMENT TOOLS ━━━━━━━━━━━━━━━━━━━ • DIGITAL SCREEN RULER: Measure length and width with ease. Supports Millimeters (mm), Centimeters (cm), Decimal Inches, and Fractional Inches (e.g., 3 5/16"). • DUAL CALIPER SLIDERS: Smooth two-finger touch calipers for measuring small parts, screws, bolts, coins, and jewelry with pinpoint accuracy. • DUAL-EDGE SCALE: Display metric on one edge and imperial on the other simultaneously for instant unit comparison. • 2D AREA CALCULATOR: Drag length and width calipers to calculate surface areas in real time. • 360° PROTRACTOR: Measure internal and external angles, slopes, and bevels effortlessly. • 2D SPIRIT BUBBLE LEVEL: High-precision surface leveler powered by device tilt sensors with real-time degrees readout. ━━━━━━━━━━━━━━━━━━━ 🎯 SIMPLE & EXACT CALIBRATION ━━━━━━━━━━━━━━━━━━━ Every device screen is unique. Ruler ensures 100% true physical accuracy with two simple calibration methods: 1. Credit Card Calibration: Use any standard ISO credit or debit card for instant 1-tap calibration. 2. Physical Ruler: Align with any physical ruler or tape measure to fine-tune down to the exact sub-millimeter. ━━━━━━━━━━━━━━━━━━━ ✨ DESIGNED FOR PERFECTION ━━━━━━━━━━━━━━━━━━━ • Tactile Haptic Feedback: Feel subtle clicks as calipers glide across major tick marks. • Professional Themes: Choose from vibrant drafting themes including Electric Sky Blue, Emerald Teal, Tangerine Orange, Crimson Ruby Red, Obsidian AMOLED Black, and Classic Wood Finish. • 100% Offline & Private: No internet required for measuring. Zero tracking, zero account sign-up, and zero personal data collection. • Lightweight & Fast: Instant startup with minimal battery consumption. Upgrade to Pro to enjoy a 100% ad-free experience forever with all premium themes unlocked. Download Ruler today and carry a complete precision measuring station in your pocket!