Plumb Level: Spirit Level

Turn your phone into a precise digital level - bubble, plumb, 45°, and torpedo angle modes. Reads to 0.1° and locks with a haptic snap. One-time purchase, no ads.

SET IT TRUE.

Plumb Level turns your phone into a precise digital spirit level — no glass vial to squint at, no batteries to buy. Lay it on an edge, stand it against a stud, or hold it to a pipe, and read the angle to a tenth of a degree.

FOUR WAYS TO READ • Linear tube — targets level, plumb, or 45°; or set Auto and it tracks whichever the phone is nearest and turns the vial to match. • Bullseye — a surface vial that shows the high side of any flat plane at a glance. • Plumb bob — a true hanging plumb for checking verticals. • Torpedo — a go/no-go mode: set a target angle, then tilt to match, with a haptic that ramps as you close in.

BUILT FOR THE JOB, NOT THE LAB • Auto-lock freezes the axis you're tracking so it can't jump while you work. • A heavy haptic snaps the instant you hit dead level — you feel it, gloves on. • Near level, it reads the pitch in inches per foot, in the fraction you work in. • Sensor-fused from the accelerometer and gyroscope for a bubble that's steady and quick at once. • Big, high-contrast readout and thick borders sized for gloved hands and bright sun.

SAVE THE PROOF Tap Save and Plumb Level stores the reading with a snapshot of the vial exactly as it read. Everything lands in your Saved ledger: time-stamped, titled, with notes and an optional jobsite location stamp.

SHARE A CLEAN RECORD Export your saved readings as a PDF or PNG ledger, or back the whole set up to a .plumb file. Turn on Custom Branding to stamp your own business name, contact info, and logo on every export — a tidy record for the client or your own files.

WORKS WITH ZERO BARS Everything runs on the device. No account, no login, no cloud, no network needed — check level in a basement, a bare shell, or the middle of nowhere.

WHO IT'S FOR Carpenters, masons, framers, tile setters, electricians, plumbers, cabinet and shelf hangers, inspectors, and DIYers — anyone who needs plumb, level, and a true angle, fast.

ENGLISH & SPANISH The whole app, including your exports, in English or Spanish.

PRIVATE BY DESIGN Plumb Level collects nothing. No tracking, no ads, no analytics, no third-party SDKs. Your readings and snapshots never leave the phone unless you send them yourself with the share sheet.

ONE PRICE, THAT'S IT A one-time purchase unlocks the whole app. No subscriptions, no in-app purchases, no paywalls, ever.

A note on accuracy: a phone-sensor level is a fast reference. For structural, code, or safety-critical work, confirm with a calibrated tool.