LevelFox: Level, Ruler & Angle

LevelFox is 4 essential measuring tools combined into one clean, responsive app: bubble level (spirit level), angle meter (inclinometer), on-screen ruler, and protractor. Calibrate all 6 sides with ease, measure accurately, and enjoy a tool with zero forced ads and zero invasive permissions. WHY LEVELFOX • True Accuracy: Smoothed gravity sensor readings displayed with 0.1° resolution. • 6-Side Calibration: Calibrate all 6 faces of your phone (flat, face down, and every edge) using a simple 180° rotation technique — no certified flat surface required. • Works Any Way Up: The bubble follows the phone in portrait and landscape, on any of its 6 sides. • No Annoyances: No intrusive full-screen interstitials, no forced review popups, no mandatory subscriptions. Just one small banner at the bottom that hides during ruler and protractor measurements. Go Pro once to eliminate ads permanently. 4 TOOLS IN ONE APP 1. Surface Level (Bull's-Eye): Circular bubble with concentric degree rings (1°, 2°, 5°) and dual X/Y angle readings for tabletop leveling, appliances, and flat surfaces. 2. Edge Level (Tubular Bubble): Smooth tube bubble automatically matching the resting edge (bottom, top, left, right). Perfect for hanging picture frames, shelves, and cabinets. 3. Angle Meter (Inclinometer): Large, bold digital readout with circular angle gauge. Supports degrees (°), slope percentage (%), mm/m, and in/ft (rise/run). Includes relative zero to measure angles between two surfaces. 4. On-Screen Ruler & Protractor: • Caliper Ruler: Precision vertical ruler in centimeters and inches with dual draggable calipers. Calibrate with any standard credit card, ID card (85.60 mm), or coin for 100% physical accuracy. • On-Screen Protractor: 0–180° protractor with two draggable rays and angle snapping (0°, 15°, 30°, 45°, 90°). Measure small physical objects placed directly on screen. • Edge Angle: Press your phone edge against any surface, pipe, or lumber to read its exact tilt without opening the camera. KEY FEATURES • Haptic confirmation and optional audio tone when level is reached • HOLD button to freeze readings in hard-to-see spaces • Relative Zero mode ("REL") for angle differences • True Black OLED dark theme (#000000) for battery saving and readability • 100% Offline: Zero dangerous permissions required PERFECT FOR • DIY home improvement & carpentry • Hanging picture frames, wall art, and shelves • Aligning tables, washing machines, and RV campers • Drawing, homework, and woodworking angle measurements • Measuring small parts and hardware NOTE Readings rely on your phone's built-in motion sensors. Precision depends on hardware, phone case, and calibration. For safety-critical construction, always verify with a certified physical spirit level. Part of the Fox app family by DangNH Studio.

LevelFox is now on Google Play for everyone. Bubble level, edge level, angle meter, ruler and protractor with 6-side calibration, a new Brass premium look, safer Pro purchase and full translations.