Spirit Level - Bubble & Camera

FlaLab

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About this app

Spirit Level is a smart and accurate precision leveling app designed for everyday home tasks, DIY projects, woodworking, and professional construction.

Lay your phone flat for a 360° bull’s-eye surface level, stand it on any edge for tubular vial levels, or use the camera horizon mode to level wall-mounted
pictures, TV mounts, and shelves in real time.

■ Key Features

1. 360° Bull’s-Eye & Edge Tubular Levels
• Lay your phone flat to check 2D tilt (X and Y axes) simultaneously with a circular bull’s-eye vial.
• Stand the phone on any of its 4 edges (top, bottom, left, right) to automatically switch to tubular levels.
• Visual color changes, sound beeps, and vibration alerts indicate when a true level (0°) is reached.

2. Camera Horizon Overlay
• Overlays a dynamic level horizon directly onto your live camera preview.
• Perfect for hanging frames, mounting TVs, checking tile alignments, and framing straight photo shots.

3. 180° Flip-and-Measure Calibration
• Corrects internal sensor drift and offsets caused by phone cases or protruding camera bumps.
• Measures twice with a 180° turn to establish true level references for each individual surface.

4. Relative Angle (Zero at Any Surface)
• Set the current angle as your relative zero reference.
• Easily match the slope of roofs, ramps, drainage pipes, and stairs.

5. Multiple Angle Units
• Instant conversion between:
- Degrees (°)
- Percent slope (%)
- Grade / fall (mm/m)
- Roof pitch (x/12)

6. Hold Reading & Measurement Records
• Hold button freezes the reading on screen so you can check measurements in tight or awkward spots.
• Save readings with timestamps and custom memos, and share them easily via text.

7. Clean & Privacy-Friendly
• Full Dark Theme and Light Theme support.
• Runs smoothly on-device without login, account creation, or unnecessary background services.

■ Recommended For
• Hanging pictures, mirrors, wall clocks, and floating shelves straight.
• Leveling appliances and furniture (washing machines, refrigerators, desks).
• DIY woodworking, tile laying, masonry, and carpentry.
• RV, camper, and caravan leveling for camping trips.

What’s new

• Improved Camera Horizon visibility: Added a green reference line and a red gravity crosshair (horizontal & vertical) for clearer and more accurate alignment.