Angle Meter Pro

Smart Tool Factory

About this app

An angle finder, bubble level and protractor in one app, made for woodworking, electrical work and DIY. Stand the phone on an edge or lay it on a board, and it shows the angle in degrees, or in percent, roof pitch or radians. Ask for readings by voice, and find a calculator, laser level, conduit bending and more in the side menu.

MEASURE ANGLES
• Edge: stand the phone on any edge to read its angle. Back: the slope under the phone. Level: both directions, like a bubble level.
• A tap on the dial freezes the reading.
• Degrees with your choice of decimals, or radians, percent, x/12 roof pitch, 1:n, mm/m or in/ft.
• Ranges of 0–90°, 0–180° or 0–360°, the complement, the difference between two angles, angles from a reference, and your own zero mark.
• More than 20 dial styles, including Neon and Rosewood.

HANDS-FREE (NEW)
With voice commands, "hold", "save it" and "show degrees" work without a tap, and "read it" speaks the angle. Say "15 degrees" and Target lock stops the meter when you've held that angle steady, with a beep, vibration or speech. Cues beep, buzz or speak as the angle changes.

RECORD OVER TIME
Interval measurement logs readings at a pace you set, from ten per second to one every few minutes. See them on a chart with the average, minimum, maximum and spread, add a photo per reading, and share a spreadsheet or PDF.

MORE ANGLE TOOLS
• Rotation angle (new): fix the phone to a wrench, valve, wheel or door and see how far it turns, past full turns and either way. Set a target such as 90° and it beeps right there.
• Corner angle finder: set the phone on each wall to get the corner angle and the miter for both sides.
• Protractor: drag two arms over the camera view, follow the plumb line or type the angle, then keep a photo.
• Laser Level: a level laser line across the camera view, with sighting and angles between points.

CALCULATORS
• Calculator (new): a scientific calculator in degrees, minutes and seconds that can use the phone's angle, a fractions calculator with steps, and triangle and percent calculators. Also included are polygon, compound miter, bolt circle, threads, survey and more.
• Electrical calculator: Ohm's law, power, cable and motor math, resistor color codes and wire colors.
• Unit converter, with slope and angle taken from the phone.

FOR THE TRADES
• Conduit bending: lay your phone along the pipe and bend to the exact angle, with springback, offsets, saddles and 90s marked out.
• Ruler: length, diameters, thread pitch and wrench sizes on the screen.
• Tachometer: an RPM meter by sound, camera, vibration or spin.

SENSORS AND DIRECTION
• Sensor test (new): check that motion sensors, compass, barometer, GPS and microphone work, with a guided checkup.
• Decibel meter: sound level with A, C and Z weighting, plus audio and video recording.
• Lux meter: room light, plant light and photo exposure.
• Compass with bezel and globe faces.

KEEP YOUR WORK
Records hold your readings with tags, photos, voice notes and reminders, and export Excel, CSV or PDF files. Charts plot them, the Gallery keeps every photo and video you take, and the To-do list holds your tasks with notes and reminders.

ALL FEATURES INCLUDED
Angle Meter Pro is a paid app with a one-time purchase. All tools, dial styles and features are included.

Every phone's sensors differ, so run a calibration on something flat for the best results. Questions or ideas: [e-mail]

Ratings and reviews

I took a chance with the albeit low purchase price and received far more than I ever expected. This is actually a really useful app! The stop watch style meter was a little unusual to me but is a perfect choice of interfaces. Laser levelling, hard and soft angles, even a perky little bubble. This app won't disappoint you! I'm deleting a few in favor of this one.

I love this app! It is so far pretty accurate. I have been trying to find a goniometer that is more accessible for the visually impaired and without having to spend a fortune. This app is by far the best out there. It is totally worth the $0.99 to upgrade to the PRO version. ***My only suggestion to make it completely accessible would be to have a voice/audio measurement reading setting that you can turn on if you prefer to have the measurements read out loud instead. Also, when using the angle meter to measure the roll, is there a way to keep it from measuring on the other planes of the pitch and yaw at the same time? That seems to make measurements get off accuracy if you end up tilting the phone slightly forward or back when rotating it to the side to get the angle. Do you have an Apple compatible version as well? PLEASE consider these for the next updates. Thank you!

Excellent app, excellent idea! Its quite competant for all the tools provided! The only thing I miss for the protractor in plumb mode, is to add an option to freeze/pause the screen (e.g, tapping the screen once) , so I can measure the angle of elevation correctly, as in a clinometer.

What’s new

Choose and preview a spoken voice for your language. Improved measurement menus, interval controls, dial rendering and tutorial navigation. Updated sound and light meter tools and translations.