Bubble Level: Spirit Level

Name: Bubble Level: Spirit Level
Availability: InStock
Author: pentarab

pentarab

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Everyone

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About this app

Bubble Level opens with the bubble already moving and the angle already on screen. Set the phone on the shelf, the frame or the table and read it.

A REAL SPIRIT LEVEL
• Round vial when the phone lies flat, bar vial when it stands on an edge — switches by itself
• Angle to 0.1 degrees
• Turns green and taps when you hit level
• Hold to freeze the reading (3 a day free), Zero to calibrate against any surface (kept with Pro)

UNITS FOR THE JOB
Degrees; percent grade and millimetres per metre (Pro).

INCLINOMETER (Pro)
Roof pitch (x:12), fall ratio (1:n) and slope tables for decking, drainage and stairs.

NO PERMISSIONS, NO ACCOUNT
Uses the phone's built-in tilt sensor. Works offline.

Unlock the inclinometer permanently plus saved calibration and measurement snapshots with a one-time purchase.

Pro: unlimited use, all features unlocked. One-time purchase.

Opens with the bubble already moving. Level, angle and slope — no setup.

Updated on

Nov 1, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.