Protractor+ app icon

Apps Like Protractor+ for iPhone and iPad

Measure angles in degrees and radians

Measure angles using your iPhone as a protractor. Select degrees or radians. Adjust the angle visually with intuitive controls.

by Tue Nguyen Minh★ 4.110,412 ratingsUtilitiesFreeData updated 2026-09-08

Protractor+ screenshots

Ranked alternatives

Showing 441–460 of 1,000 ranked alternatives.

  1. Construction Calculator: Pro² app icon

    Construction Calculator: Pro²

    Oleg Shapkin, IE

    Calculate deck and floor areas quickly

    Calculate decking and flooring materials with area, board runs, spacing, and waste allowance. Generate material takeoffs for boards and joists. Measure roof coverage, sheet counts, overhangs, pitch, angle, and rafter lengths.

    ★ 5.03 ratingsUtilitiesFreeData updated 2026-09-06
  1. Dutchman's Log app icon

    Dutchman's Log

    Colin Porteous

    Measure boat speed over water

    Measure boat speed over water by timing how long it takes to pass a floating object. Enter boat length and units in settings. Requires two people: one on the bow to throw an object into the water and another aft to track its passage.

    ★ 0.00 ratingsNavigation$2.99Data updated 2026-09-08
  2. Cleaner Speaker Water Wave app icon

    Cleaner Speaker Water Wave

    clement gasner

    Measure sound with your microphone

    Measure sound levels using your device's microphone. View real-time data and graphs. Save measurements for later review. Pause recordings and adjust sensitivity settings.

    ★ 4.418 ratingsUtilitiesFreeData updated 2026-09-06
  3. Decibel Meter(Sound Meter) Pro app icon

    Decibel Meter(Sound Meter) Pro

    Zipo Apps Ltd.

    Measure sound volume in real time

    Measure sound volume in real time with a meter. Display current sound level with a main indicator and digital dB value. Provide explanations for sound levels. Allow calibration of microphone settings.

    ★ 3.911 ratingsUtilities$2.99Data updated 2026-09-14
  4. iTopography - Area Calculator app icon

    iTopography - Area Calculator

    Vasileios Gkanis

    Calculate polygon angles and map coordinates.

    The app computes polygon angles and obtains map coordinates. It allows users to create projects, import DXF files, and email data.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-16
  5. Magnetized Wristwatch Checker app icon

    Magnetized Wristwatch Checker

    Deniss Fedotovs

    Check watch magnetization and calibrate

    Measure watch magnetization with a calibration feature for accurate results. Check magnetization levels and determine if demagnetization is needed. Provides clear readings without ads or distractions. Follow instructions for precise measurements.

    ★ 4.713 ratingsUtilitiesFreeData updated 2026-09-06
  6. Calculator + AR Ruler BLACK #1 app icon

    Calculator + AR Ruler BLACK #1

    DIGIID LLC

    Measure and calculate with AR precision

    AR measuring lets users tap two points on the camera screen to measure object lengths. Auto convert button changes units. performs basic math functions.

    ★ 5.019 ratingsUtilitiesFreeData updated 2026-09-06
  7. NZ Topo Maps app icon

    NZ Topo Maps

    Rajan Fernandez

    Download , find huts, track trails

    Access offline topographic of New Zealand. Download and manage to conserve storage. Locate DOC huts, campsites, and hunting areas. Search for named locations. Import GPX routes and share via AirDrop. Measure distances on .

    ★ 4.319 ratingsNavigationFreeData updated 2026-09-14
  8. Umetrix Data app icon

    Umetrix Data

    Spirent Communications, Inc.

    Test mobile speed and track results

    Measure mobile network performance with accurate speed tests. Track and map test history online. Compare results with global user . No ads during testing.

    ★ 4.05 ratingsUtilitiesFreeData updated 2026-09-08
  9. Measuring Tape: Photo Ruler app icon

    Measuring Tape: Photo Ruler

    Enes Bugra Yenidunya

    Measure distances with your iPhone

    Measure distances and areas using AR technology. Tap to mark points and calculate lengths. View measurements in inches or centimeters. Save and share measurement data. Sync with other devices for project management.

    ★ 3.03 ratingsUtilitiesFreeData updated 2026-09-06
  10. Learn Knots! Boat and Yacht app icon

    Learn Knots! Boat and Yacht

    Lennard Sommer

    Knots, rotate steps, save offline

    Essential knots with detailed step-by-step guides. Rotate each step 360 degrees for clear visualization. Access tips and applications for each knot. Includes figure-eight, clove hitch, bowline, and more. No internet required.

    ★ 0.00 ratingsEducation$1.99Data updated 2026-09-28

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.