Protractor vs Diedro Angle Finder & Level

PAID ACCESS REQUIRED Protractor is a paid app. A weekly or yearly auto-renewable subscription, or a one-time lifetime purchase, is required to use every feature after onboarding. There is no free version and no free trial. Measure any angle without a physical protractor. Drag two arms across the screen, aim the camera at a real object, or rest your phone on a slope and read the tilt live. Most angle apps give you one trick. Protractor gives you three measuring surfaces in one app — an on-screen protractor for photos and drawings, a see-through camera overlay for real objects, and a motion-sensor inclinometer for surfaces you can put your phone on. Every reading comes out in degrees, radians or percent grade, and roof work gets the rise-in-12 pitch on the same screen. WHAT YOU GET - Read the exact degree of any corner on a photo or drawing by dragging two arms and the vertex onto it - Point the camera at a wall, ramp, roof edge or shelf and measure the angle right on the live view - Turn your phone into a digital level that shows pitch, roll, percent grade and roof pitch as rise:12 at once - Lock a reading with Hold or Freeze so the number stays put while you climb down or move the phone - Keep every measurement in History with a photo thumbnail, plus your saved count, average and widest angle - Switch between degrees, radians and grade in one tap, with a built-in conversion table for common values PERFECT FOR - DIY and home projects: shelves, picture rails, ramps, furniture - Roofing, decking and construction: slope, grade and pitch checks - Woodworking and metalwork: bevels, miters and corner angles - Students and teachers measuring angles on diagrams and photos WHY NOT JUST USE A PLASTIC PROTRACTOR A plastic protractor only works on paper, only reads what fits inside its arc, and is never in your pocket when the roof needs checking. This one measures on a photo, through the camera, or straight off a surface — and it remembers every reading instead of you writing them on a scrap of wood. PRIVACY Everything is measured and stored on your device. No account, no sign-up, no cloud upload of your photos or readings. The camera feed is used only to draw the protractor on top of it, and the app works with no internet connection. FULL ACCESS Full access unlocks the camera protractor, the live inclinometer, saved measurement history and all angle units. It is offered as a weekly subscription, a yearly subscription, or a one-time lifetime purchase. Your exact plan and price are shown before you confirm, and subscriptions renew until cancelled in your App Store settings. Open Protractor, point it at the next angle you need, and get the number in seconds. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? Email tphuc.work@gmail.com

Diedro measures angles with the hinge of iPhone Duo: open the phone against a corner and read the angle between its two halves. On any other iPhone it is a bubble level, a corner gauge and a true-scale ruler. No ads, no account. ON iPHONE DUO: THE HINGE IS THE INSTRUMENT • Measure. The interior angle, with its exterior, its supplement and the miter saw setting that joins two pieces in that corner. • Square. Color and a tap tell you when you reach 90°, 45° and the usual workshop angles. • Target. Pick an angle and be guided to it: how far, and which way. Use it to transfer an angle: measure it, save it, make it the target. • Two-plane level. With the Duo folded, one half rests on the base and the other rises against the slope: you read both at once. • A true-scale ruler whose zero is the fold. • Hold and Auto hold. The reading freezes as soon as it is steady, so you can take the phone off the work and read it. • A log of saved readings, and hinge calibration. • Nearly closed, it keeps measuring on the cover display, with Hold and Save under your thumbs; shut, it shows the last reading. ON ANY iPHONE • Bubble level. Lying flat, on two axes, or standing on its edge; in degrees and percent of slope. It zeroes in two positions, like a real level. • Corner gauge. Rest the back of the iPhone on one face of a corner, then on the other: the turn between the two rests is the corner, with its exterior, its supplement and the miter saw setting. Two walls, a floor and a wall, the bevel of a blade. • True-scale ruler in millimeters or inches (decimals and fractions). Check it with a bank card: the long side is 85.6 mm. Measure, Square and Target read the hinge angle, so they only appear on iPhone Duo. Nothing is simulated on other iPhones. DIEDRO PRO On iPhone Duo, the live angle, the level and the ruler work without Diedro Pro. Diedro Pro unlocks the workshop tools: Hold and Auto hold, the Log, Square, Target, the two-plane level, calibration, and the correction for the camera and the case. Pay once and keep it for good, or subscribe by the month; the subscription renews automatically until you cancel it. Both are shared with Family Sharing. On other iPhones nothing is locked. HONEST ABOUT PRECISION Diedro shows the resolution the sensor really delivers and never adds decimals that are not there. It is a handy instrument, not a certified one: check anything that matters against a tool you trust. PRIVACY No ads, no account, no tracking. The readings you save stay on your iPhone. Apple handles the purchase; RevenueCat checks its status without identifying you. Privacy policy: https://roberib.github.io/legal/diedro/ Terms of use (Apple's standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/