Spirit & Bubble Level

Spirit level and bubble level for your phone: a digital inclinometer for level, plumb and 45° angles. 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 (Pro) — 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 Saving and sharing a reading are free. With Pro, export your saved readings as a branded PDF or PNG ledger, back the whole set up to a .plumb file, and 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. (Purchases are processed securely through the App Store and RevenueCat.) 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 No account, no tracking, no ads, no analytics. Your readings and snapshots never leave the phone unless you send them yourself with the share sheet. The app talks to the App Store and RevenueCat only to check or complete a Pro purchase. FREE, WITH AN OPTIONAL PRO UNLOCK The level, saving and sharing are free for good. Pro is a one-time unlock, with no subscription and no ads: branded PDF and PNG exports, Custom Branding, .plumb backup and restore, and the Torpedo vial. It starts with a 14-day free trial. MORE FROM PLUMB Want the feet-inch calculator, an AR tape measure, and a stud finder too? Plumb Pro puts every Plumb tool in one app, a tap away in Settings. A note on accuracy: a phone-sensor level is a fast reference. For structural, code, or safety-critical work, confirm with a calibrated tool.