# Bubble Level: Spirit & Angle — Level tool, Face-Down Mode

> Level tool, Face-Down Mode (iPhone/iPad app by Tianyu Lu.)

- Source: https://appshunter.io/ios/app/bubble-level-spirit-and-angle/id6816330217 (this page in markdown: same URL + `.md`)
- Developer: [Tianyu Lu](https://appshunter.io/developer/6810794695)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 8 MB
- Languages: American English
- Released: 2026-10-01
- Data updated: 2026-10-02

## What is Bubble Level?

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.

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WHY CHOOSE THIS BUBBLE LEVEL?
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• 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.

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COMMON USE CASES
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• 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.

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KEY FEATURES
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• 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!

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |



## Version history (last 1 release)

### 1.0.2 — 2026-10-01

No release notes.

## Apps similar to Bubble Level

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Smart Angle Meter 360](https://appshunter.io/ios/app/smart-angle-meter-360/id6781633001) | — | Free | Utilities |
| [Just Sensors](https://appshunter.io/ios/app/just-sensors/id6758069414) | 5.0 (3) | $0.99 | Utilities |
| [Analog Clock Pro](https://appshunter.io/ios/app/analog-clock-pro/id6755958237) | — | Free | Utilities |
| [Spirit Level: Bubble & Angle](https://appshunter.io/ios/app/spirit-level-bubble-and-angle/id6782371469) | — | Free | Utilities |
| [WrenchTime: Car Maintenance](https://appshunter.io/ios/app/wrenchtime-car-maintenance/id6749767537) | 5.0 (9) | Free | Utilities |
| [Bull Crypto Signals & Updates](https://appshunter.io/ios/app/bull-crypto-signals-and-updates/id6639611372) | — | Free | Utilities |

## More apps by Tianyu Lu

- [2048 Twisted](https://appshunter.io/ios/app/2048-twisted/id6810794693)
- [Sudoku: Pieces](https://appshunter.io/ios/app/sudoku-pieces/id6810938707)
- [Ruler: CM, MM & Inches](https://appshunter.io/ios/app/ruler-cm-mm-and-inches/id6815516308)

All apps by Tianyu Lu: https://appshunter.io/developer/6810794695

## Related topics

[bubble level and clinometer](https://appshunter.io/ios/topics/bubble-level-and-clinometer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-02.*