This tool simulates a physical spirit level with realistic physics and fluid optics. It offers multiple display modes for angles and surfaces, with customizable feedback for precise measurements. Features include calibration, night mode, and various themes for different lighting conditions.
1.1.0
August 22, 2026
• Introducing Plumb Pro: AR camera mode, colour themes + night mode, trade units (%, pitch, mm/m, in/ft), adjustable tolerance, and level alerts — free for 14 days, then $9.99/year • Early user? Everything stays free for you, forever — thanks for being here first • Settings redesigned
MoreThanks so much! Glad it feels like the real thing — that was the goal. More precision tools on the way.
Thanks so much! Glad it worked out for your Dad.
Plumb is a digital spirit level designed to accurately measure angles and ensure surfaces are level. It simulates the feel of a physical bubble level with realistic physics and visual feedback.
No, Plumb is completely ad-free. The developers have stated 'NO ADS. NO ACCOUNT. NO TRACKING.' to ensure a clean user experience.
Plumb is designed for precision and features genuine spring-damper physics for its bubble movement. It also offers calibration features to ensure accuracy on any known flat surface.
Yes, Plumb has a dedicated Angle Tab that allows you to dial in target angles, including custom pitches and grade percentages, with live feedback as you approach your desired measurement.
Plumb offers six display modes for angles: degrees, percentage, mm/m, pitch (X.X:12), and in/ft. Each tab has its own independent display mode.
When you hit level, Plumb provides simultaneous feedback through a screen flash, a confirmation tone, and phone vibration. This allows for easy detection even without looking at the screen.
Based on the provided data, Plumb is currently supported on iPhone devices. Information regarding Android availability is not specified.
The latest version of Plumb is 1.0.1, which was last updated on April 1, 2026. This indicates recent development and ongoing support for the application.
