Bubble Level: Spirit & Angle

Level tool, Face-Down Mode

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Precision leveling made effortless. Features innovative Face-Down Mode to bypass camera bumps, 360° bullseye dial, tubular level, and instant audio/haptic zero feedback. Turn your phone into a professional, high-precision spirit level and inclinometer! Whether you are hanging picture frames, aligning a TV wall mount, leveling a tripod, or tackling carpentry and DIY projects, Bubble Level: Spirit & Angle delivers workshop-grade precision with a sleek, modern interface. --- WHY CHOOSE THIS BUBBLE LEVEL? --- • INNOVATIVE FACE-DOWN PRECISION MODE Tired of inaccurate measurements caused by bulky rear camera bumps? Simply place your phone face-down on its 100% flat front glass, tap the 3-second or 5-second countdown timer, and let the app measure. An intuitive phone-back diagram highlights the corner or side to raise. • DUAL BULLSEYE & TUBULAR LEVELS - 360° Bullseye Level: Measures 2D surface inclination in all directions simultaneously with realistic fluid damping physics. - Tubular Spirit Vial: Classic horizontal level for single-axis edge leveling, shelf alignment, and corner checks. • AUDIO & HAPTIC ZERO FEEDBACK Hear a crisp audio tone and feel a subtle vibration tick the exact millisecond you reach perfect 0.0° level. No need to squint at the screen when working in tight, dark, or awkward spaces. • RELATIVE ZERO & CALIBRATION Calibrate against any angled reference surface to measure relative slopes, bevels, and pitch angles with a single tap. • ANGLE LOCK / HOLD Freeze your live measurement on screen so you can easily inspect readings after pulling the phone away from awkward corners. --- COMMON USE CASES --- • Home & Decor: Picture frames, mirrors, wall-mounted TVs, shelves, and wall art. • Carpentry & DIY: Tables, furniture assembly, tiling, and cutting guides. • Photography & Video: Leveling tripods, camera rigs, and gimbals. • Camping & RV: Leveling RVs, travel trailers, camping tables, and portable stoves. --- KEY FEATURES --- • High-precision accelerometer & gyroscope calculation engine • Crisp digital angle readout down to 0.1° accuracy • Sound & haptic vibration feedback at 0.0° balance • Face-Down measurement with countdown timer (bypasses camera bumps) • Relative zero angle calibration • Clean, eye-friendly dark titanium design • Sensor measurements are processed on your device. See our privacy policy for advertising data use. • Optional one-time In-App Purchase to remove all ads permanently Download Bubble Level: Spirit & Angle today for fast, reliable, and hassle-free leveling!

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

Bug fixes

Version 1.0.3

The developer, Tianyu Lu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Tianyu Lu
Size
8.8 MB
Category
Utilities
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPad
    Requires iPadOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 Tianyu Lu
  • Developer Website
  • Privacy Policy

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