Protractor (Angle measurement) app icon

Apps Like Protractor (Angle measurement) for iPhone and iPad

Measure angles with camera

Measure angles using a camera-based . Detect and display angles of objects in real time. Save and share measurements. Calibrate for accurate readings.

by EONSOFT★ 3.76 ratingsUtilitiesFreeData updated 2026-09-09

Protractor (Angle measurement) screenshots

Ranked alternatives

Showing 481–500 of 1,000 ranked alternatives.

  1. AI 3D Scanner App: Model Maker app icon

    AI 3D Scanner App: Model Maker

    CROSSING PUB LTD

    Measure rooms and objects in 3D

    Create detailed floor plans using 3D measuring tools. Measure objects or rooms by taking photos or using the screen. Leverage AR to visualize dimensions and spatial relationships. Export plans and share them directly.

    ★ 4.814 ratingsUtilitiesFreeData updated 2026-09-06
  2. AI Health Pulse - Heart Rate app icon

    AI Health Pulse - Heart Rate

    COHESION NETWORK PTE LIMITED

    Track and vital signs

    Track using phone camera for accurate monitoring. Log and monitor blood pressure, blood sugar, blood oxygen, and BMI. Set reminders for checks and view progress charts. Sync data across devices and receive alerts for abnormal readings.

    ★ 4.629 ratingsHealth & FitnessFreeData updated 2026-09-06
  1. FizziQ: Science Lab & Sensors app icon

    FizziQ: Science Lab & Sensors

    Christophe Chazot

    Explore physics with built-in sensors

    Record and visualize physical phenomena using smartphone or tablet sensors. Measure sound, motion, light, and temperature. Connect external sensors like micro:bit and Arduino for advanced experiments.

    ★ 4.428 ratingsEducationFreeData updated 2026-09-26
  2. Angle Finder - Trig Calculator app icon

    Angle Finder - Trig Calculator

    Shital Gorasiya

    Calculate angles, solve triangles, and compute trigonometric

    Calculate angles, side lengths, and hypotenuse of triangles. Determine arc radius, arc length, chord length, and chord height. Solve trigonometric problems with precise formulas and tools. Input measurements to get accurate geometric results.

    ★ 1.01 ratingsUtilitiesFreeData updated 2026-09-06
  3. Decibel Meter-Noise monitoring app icon

    Decibel Meter-Noise monitoring

    Mirarobot Science & Technology Co., Ltd.

    Measure noise, track decibels, generate reports

    Measure ambient noise levels in real time and save data locally. Generate visual reports from collected data. Record noise changes with camera forensics.

    ★ 4.214 ratingsUtilitiesFreeData updated 2026-09-06
  4. Tap Tool Pro app icon

    Tap Tool Pro

    Simon McMenzie

    Tap to measure heart rate or breathing

    Measure heart rate or breathing rate by tapping the screen. Count objects, people, or events without a pen. Determine beats per minute for music tracks. Sync data with other apps for analysis.

    ★ 4.330 ratingsUtilities$0.99Data updated 2026-10-17
  5. iRuler Plus app icon

    iRuler Plus

    CONG DUC TRAN

    Measure length with your phone

    Measure lengths in centimeters or inches by placing the iPhone beside an object and moving it while touching the screen. Use a long scroll ruler up to 120 cm or a stick ruler with two sliders for small items.

    ★ 1.715 ratingsUtilitiesFreeData updated 2026-09-12
  6. Photo Measures Lite app icon

    Photo Measures Lite

    Cubent SARL

    Save measures directly on photos.

    The app allows users to take photos and add dimensions, angles, and text comments directly onto the images. Users can zoom for precision, organize photos by category, and export dimensions in high resolution via email or to the photo library.

    ★ 2.231 ratingsProductivityFreeData updated 2026-09-17
  7. Ruler AR: Digital Tape Measure app icon

    Ruler AR: Digital Tape Measure

    Reman Attar

    Distance, height, width, length, and area

    Distances, heights, widths, and lengths using your phone's camera. Calculate area with the area tool. Save measurements, remove limits, and export data to Excel. Includes flashlight and screenshot features. No ads with premium subscription.

    ★ 4.522 ratingsUtilitiesFreeData updated 2026-09-06
  8. GPS Field Area Measurement App app icon

    GPS Field Area Measurement App

    Harshaben Hirpara

    Measure areas, track distances, calculate sizes

    Measure distances between objects and calculate areas using GPS. Select units in Imperial or Metric systems. Determine property lines and export measurements in square feet, acres, or kilometers.

    ★ 5.02 ratingsUtilitiesFreeData updated 2026-09-06
  9. Simple Circuit Builder app icon

    Simple Circuit Builder

    David White

    Measure voltages and calculate resistance

    Learn about resistors and resistance with interactive simulations. Configure up to eight component sections. Measure voltages across resistors and current through series and parallel circuits. Solve electrical circuits.

    ★ 4.028 ratingsUtilitiesFreeData updated 2026-09-13
  10. 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
  11. SMART Service Tool app icon

    SMART Service Tool

    Rodrigo Miranda

    Convert pressure to temperature

    Select refrigerant types and units of measure. Calculate superheat and subcooling using NIST data. Convert pressure to temperature. Display custom data settings. Connect Bluetooth sensors for real-time readings.

    ★ 3.320 ratingsBusinessFreeData updated 2026-09-09
  12. Shutter-Speed app icon

    Shutter-Speed

    Filmomat GmbH

    Measure analog camera shutter speeds easily.

    The app measures analog camera shutter speeds using an iPhone. It analyzes light passing through the shutter with an optional optical sensor or calculates speed from shutter sound for slower speeds.

    ★ 3.522 ratingsUtilitiesFreeData updated 2026-10-03
  13. Taekwon-do ITF Patterns app icon

    Taekwon-do ITF Patterns

    Appsolute LLC

    Learn Taekwon-Do patterns and sparring.

    The app provides instruction for Taekwon-Do ITF patterns and sparring drills required for belt promotions. Users can view patterns from two camera angles and access diagrams without an internet connection.

    ★ 4.215 ratingsSports$1.99Data updated 2026-09-26
  14. Measure Tools - LINEA app icon

    Measure Tools - LINEA

    Critec, Lda

    Record and share image measurements easily.

    The app allows users to photograph or import images to record measurements, angles, and text notes. Users can save and share these annotated images, organizing them into folders.

    ★ 2.45 ratingsProductivityFreeData updated 2026-09-30
  15. Luminosys - Light Meter app icon

    Luminosys - Light Meter

    Melissa Zwick

    Measure with your phone camera

    Measure ambient using Lux or Foot Candles units. Utilizes phone camera and paper to determine levels. Ideal for photography, source comparison, and indoor gardening applications.

    ★ 4.58 ratingsUtilitiesFreeData updated 2026-09-06
  16. Clockwork - Watch App app icon

    Clockwork - Watch App

    Appfred AS

    Measure accuracy and sync time

    Measure accuracy using image-based analysis. Store details, sync to atomic time, and adjust time settings. Compare measured time against precise atomic time sources.

    ★ 4.421 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

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