Bubble Level vs Spirit Level

A bubble level, plumb bob and angle finder in one app — hold your phone against a wall, post or shelf and read the exact tilt in degrees, percent grade or roof pitch. Most level apps stop at a bubble sliding in a tube. PlumbLine adds the tool the trades actually reach for: a digital plumb bob that swings to the side a wall leans and snaps green at true vertical, a two-axis surface check that tells you which edge sits low, and a calibration step that cancels out a slightly bent case so every later reading is honest. WHAT YOU GET - Know instantly whether a wall, post or door jamb is truly vertical, not just "close enough" - Level a shelf, picture frame or rail on the first try instead of nudging and re-checking - See if a worktop, tile or table is flat on both axes, and exactly which edge to shim - Read any slope three ways — degrees, percent grade, or rise-in-12 roof pitch — with no math - Freeze a reading with Hold, so you can lower the phone and still see the number - Keep a timestamped log of every check, so you can prove what was true when you left the job PERFECT FOR - DIYers hanging frames, shelves, mirrors and curtain rails - Carpenters, tilers and finish trades checking jambs, studs and worktops - Homeowners setting fence posts, gates and decking - Anyone who wants a straight result without carrying a spirit level around WHY NOT JUST USE A POCKET SPIRIT LEVEL? A physical level tells you the bubble is "about" centred. PlumbLine gives you the number — 0.4 degrees of lean, low on the right — plus a pass or fail badge against a tolerance you set yourself, and a saved record afterwards. It is already in your pocket, and it never gets left in the van. PRIVACY Everything runs on the motion sensor already in your device. No account, no ads, no tracking, no internet connection needed. Your readings and saved log stay on your phone. FULL ACCESS PlumbLine Premium unlocks the full toolkit — plumb bob, spirit level, surface check, the angle finder with percent and roof-pitch units, fine calibration, and the saved measurement log. Choose a weekly plan, a yearly plan, or a one-time lifetime purchase. Restore Purchases is always available in Settings. Open PlumbLine, press a long edge of your phone flat against the next wall you were about to eyeball, and see how far off it really is. Not for surveying, aviation or safety-critical alignment. Readings are approximate. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? Contact tphuc.work@gmail.com

Turn your iPhone into a precise, easy-to-read spirit level. Pocket Level uses the built-in motion sensors to measure tilt, angle and slope in real time, with numbers so big you can read them at a glance. No clutter, no sign-up, and no ads getting in the way of your work. ▼ Main features - Bubble level vials: horizontal, vertical and a bull's-eye (round) view - Auto switching between horizontal and vertical mode as you rotate the phone - Digital angle readout in 0.1° steps, on both X and Y axes - Switch units: degrees (°), percent slope (%) or roof pitch (x:12) - Freeze the reading to lock the current value - 1-tap calibration to fine-tune accuracy on your own surface - Camera clinometer: live horizon line, crosshair and tilt angle - Haptic feedback, sound on/off, and a clean dark interface ▼ Free, and no ads Pocket Level is completely free to use, with no ads and no subscriptions in the released version. Measure, level and align as much as you like. ▼ Premium (one-time purchase) An optional one-time in-app purchase unlocks extra tools: zero the reference angle in the camera clinometer for relative measurement, add the percent slope and roof pitch units, and support future features. Buy once, keep it forever. ▼ Please note Readings are estimated from your device's sensors, so accuracy can vary by model. Use the 1-tap calibration on a known flat surface to adjust and get the most reliable results. Whether you're hanging a picture, checking a shelf, building furniture, mounting a TV, leveling an appliance or measuring a roof pitch, Pocket Level gives you a fast, reliable angle anywhere.