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 421–440 of 1,000 ranked alternatives.

  1. Bandwidth app icon

    Bandwidth

    ZHENG WANG

    Track data usage and reset manually

    Monitor data usage for 3G, GPRS, and Wi-Fi networks. Track data in bytes, KB, MB, and GB. Reset or correct data manually. Set plans and receive color-coded alerts for usage thresholds. Notify users of data overage.

    ★ 3.39 ratingsUtilitiesFreeData updated 2026-09-08
  2. GPS Area Measure: GLandGo app icon

    GPS Area Measure: GLandGo

    4Digsoft Technology Limited

    Measure land and distance

    Measure land , distance, and perimeter using GPS. Create projects, add team members, and sync measurements in real time. Set permissions for different roles and collaborate on shared projects. Export data and view detailed reports.

    ★ 4.632 ratingsUtilitiesFreeData updated 2026-09-06
  1. Bubble Level & Angle Finder app icon

    Bubble Level & Angle Finder

    ANDRES FELIPE SARRAZOLA VELEZ

    Measure, lock, and adjust with precision

    Turn your iPhone into a professional spirit and meter. Measure angles and check with precise digital readouts. Lock onto surfaces and receive haptic feedback. Use built-in calibration for accurate readings.

    ★ 4.816 ratingsUtilitiesFreeData updated 2026-09-06
  2. Metronome Cifra Club app icon

    Metronome Cifra Club

    Studio Sol Comunicacao Digital LTDA

    Set tempo, listen, save measures

    Track beats with a visual and adjustable tempo settings. Select measures and notes for practice. Save study history and favorite frequently used measures. Choose from multiple sound options and customize sound settings.

    ★ 4.734 ratingsMusicFreeData updated 2026-09-08
  3. Zone Tool app icon

    Zone Tool

    Jouni Erola

    Measure shadows and highlights

    Calculate exposure settings using system theory. Measure shadow and highlight zones. Input film ISO and shutter speed. Determine aperture value and adjust based on calculated results.

    ★ 2.86 ratingsPhoto & Video$0.99Data updated 2026-09-21
  4. Seismometer app icon

    Seismometer

    FFFF00 Agents AB

    Measure vibrations, shakes, and movements.

    The app measures vibrations, shakes, and movements using the iPhone's accelerometer. It calculates energy and displays results on a logarithmic scale, offering signal filters, configurable settings, recordings, and CSV exporting.

    ★ 3.317 ratingsUtilities$1.99Data updated 2026-09-10
  5. Speedometer Bike app icon

    Speedometer Bike

    Andrey Kiselev

    Track speed and road rules in real

    Measure speed for bikes, boats, cars, and planes. Display speed limits and trigger sound alerts. Show coordinates and compass direction. Include breathalyzer functionality for alcohol testing.

    ★ 4.813 ratingsNavigationFreeData updated 2026-09-06
  6. Ruler App app icon

    Ruler App

    Piet Jonas

    Measure small things with precision.

    The app transforms an iPhone or Apple Watch into a measuring tool for small objects. It allows users to switch between imperial and metric scales and adjust the ruler's height for comparison.

    ★ 2.65 ratingsUtilities$0.99Data updated 2026-09-10
  7. Good Grapher - scientific graphing calculator app icon

    Good Grapher - scientific graphing calculator

    Iurii Mozharovskyi

    Powerful scientific graphing calculator tool.

    The app is a scientific graphing calculator with 2D and 3D graphing capabilities. It also includes a math solver for various equation types.

    ★ 0.00 ratingsEducation$4.99Data updated 2026-10-11
  8. T-Charts (Pros and Cons) app icon

    T-Charts (Pros and Cons)

    Tekk Innovations LLC

    Measure pros and cons of situations.

    The app allows users to record pros and cons for any topic and assign weights to each factor. Users can create unlimited t-charts and email them to friends for feedback.

    ★ 2.334 ratingsUtilitiesFreeData updated 2026-09-11
  9. SwingTool - Swing Weight app icon

    SwingTool - Swing Weight

    Sten Kaiser

    Measure of racquets and clubs

    Measure of tennis racquets, golf clubs, and baseball bats by hanging equipment and letting it . Use iPhone near the swinging end to automatically display the measurement.

    ★ 4.217 ratingsSports$1.99Data updated 2026-11-02
  10. Flip Clock 3D : Study Time app icon

    Flip Clock 3D : Study Time

    乃君 黄

    Track with a 3D

    View a 3D mechanical with adjustable angles and customizable fonts and themes. Switch between 12-hour and 24-hour formats. Set alarms that function only when the is open.

    ★ 5.015 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

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