Angle Protractor Finder Tool vs TrueLevel Bubble Level

Transform your iPhone into a professional-grade protractor with precision angle measurement capabilities. Protractor is a cutting-edge angle measurement application that leverages your device's advanced motion sensors to deliver laboratory-grade accuracy. Whether you're a professional engineer, architect, educator, or DIY enthusiast, this app provides the precision tools you need for any angle measurement task. Key Features: High-Precision Measurement • Multi-axis measurement system (Roll, Pitch, Yaw) • Real-time angle detection with 0.1-second update rate • Adjustable precision from 0–3 decimal places • Full 360° measurement range with smart normalization Smart Calibration System • Automatic calibration with stability detection • Manual calibration with reference angle input • Multi-point calibration for enhanced accuracy • Environmental adaptation for temperature and magnetic field changes Professional Tools • Visual protractor with traditional design • Compass mode for professional applications • Preset angle markers (0°, 15°, 30°, 45°, 60°, 90°, etc.) • Advanced angle calculator with trigonometric functions Data Management • Session-based measurement recording • Project organization and management • Export data in JSON and CSV formats • System-wide sharing capabilities Rich Feedback System • Multi-sensory feedback (sound, haptic, visual) • Customizable preset angle notifications • Professional angle classification (acute, right, obtuse, etc.) • Real-time device orientation display Advanced Analytics • Statistical analysis (average, min, max, standard deviation) • Time-based trend analysis • Data visualization with charts and graphs • Multi-session comparison tools Perfect for: • Engineers and architects for precise measurements • Educators for teaching geometry and trigonometry • Students for mathematics and physics studies • DIY enthusiasts for home improvement projects • Professionals requiring accurate angle verification Technical Excellence • Built with SwiftUI for modern iOS experience • CoreMotion integration for sensor accuracy • Optimized for battery efficiency • Universal device compatibility • Accessibility features included Download Protractor today and experience the future of angle measurement on your iPhone!

TrueLevel turns your iPhone into a precise pocket spirit level and angle logger. Lay the phone flat on a shelf, a picture frame, a table leg, or a worktop and read how level it is two ways at once: a clear bubble that drifts toward the high side, and exact pitch and roll in degrees to one decimal place. Big monospaced readouts stay readable across the room. It is a straightforward utility tool — for hanging pictures, setting shelves, checking a tripod head, leveling a washing machine or a 3D-printer bed, or just settling an argument about whether the floor really slopes. WHAT YOU GET • 2D bubble level — a bullseye vial that turns green the moment you are within tolerance. • Pitch and roll readouts — single-axis vials and precise degree numbers for each axis. • One-tap zeroing — calibrate against any reference plane and measure relative tilt from it. • Angle log — capture a reading, give it a label like "Top shelf", and keep a tidy history. • Adjustable tolerance — choose how close to flat counts as level, from 0.2° to 2.0°. WORKS WITH WHAT YOU HAVE • Any iPhone with the standard motion sensors. • Apple Watch — a standalone wrist level with its own bubble and Zero button. • Home Screen Widget showing your last captured angle and how many you have saved. • Live Activity on the Lock Screen and Dynamic Island for a hold-to-measure session. PRIVATE BY DESIGN No account. No cloud. No analytics. No third-party SDKs. Every reading stays on your device using Apple's own frameworks. Motion data is read only while the app is open and in front of you, and there is no network traffic. A precise tool that fits in your pocket. ---