Rul3r app icon

Apps Like Rul3r for iPhone and iPad

Measure lengths with your phone

Measure lengths with a virtual ruler. Use protractor, plumb line, and spirit level for angles and alignment. Check elevation, air pressure, and location. Monitor decibels. Convert ordinal dates to calendar dates.

by YOYASOFT LLC★ 4.41,046 ratingsUtilitiesFreeData updated 2026-09-10

Rul3r screenshots

Ranked alternatives

Showing 41–60 of 1,000 ranked alternatives.

  1. Bubble Level: AR, Angle Finder app icon

    Bubble Level: AR, Angle Finder

    Jens Rieckhof

    Level your device with precision

    Turn your phone into a with precise inclination measurement. Use camera integration to measure lengths and angles. Adjust settings for different leveling tasks and save measurements for future reference.

    ★ 4.5650 ratingsUtilitiesFreeData updated 2026-09-06
  2. Pocket Rulers app icon

    Pocket Rulers

    Keiichi Okamoto

    Measure angles and lengths easily.

    The app offers ruler and protractor functions for iPhone, iPod Touch, and iPad. It supports centimeters, inches, and sun units for the ruler, and degrees and radians for the protractor.

    ★ 1.01 ratingsUtilitiesFreeData updated 2026-09-19
  3. Morpholio Trace - Sketch CAD app icon

    Morpholio Trace - Sketch CAD

    Vectorworks, Inc.

    , design, create with layers

    Create intelligent sketches and drawings with layer management. Add markup for communication. Work through all design phases with fluid tools. Support for architectural and industrial design workflows.

    ★ 4.710,641 ratingsGraphics & DesignFreeData updated 2026-09-08
  1. Smart Tools Pro - SmartTools app icon

    Smart Tools Pro - SmartTools

    Shajir Kalady

    Measure, read, track, and organize

    Reader tool allows users to read and listen to books. Ruler tool measures length, breadth, and height of objects. Protractor tool measures angles of objects. Slope tool calculates the incline of structures. Activity track daily tasks and progress.

    ★ 3.28 ratingsUtilities$0.99Data updated 2026-09-08
  2. Decibel X PRO: dBA Noise Meter app icon

    Decibel X PRO: dBA Noise Meter

    SkyPaw Co., Limited

    Measure levels accurately

    Measure sound levels using dBA and dBC scales. Detect levels accurately with pre-calibrated sensors. Log and analyze data. Set sound level alerts. Export measurements for review.

    ★ 4.76,906 ratingsUtilities$69.99Data updated 2026-09-13
  3. AR Ruler: Measuring tape ruler app icon

    AR Ruler: Measuring tape ruler

    Konstantinos Papadakis

    Measure objects with AR precision

    Use to measure objects in real time with accurate centimeters, inches, and meters. Tap to measure distances, take unlimited readings, and view real-time AR visuals for precise results.

    ★ 4.1847 ratingsUtilitiesFreeData updated 2026-09-13
  4. dB Meter Sound Level Meter app icon

    dB Meter Sound Level Meter

    Vida Apps Incorporated

    Measure levels in real time

    Measure levels in real time using decibels. Display minimum, average, and maximum values. Stop and reset the measurement. Customize background and text colors.

    ★ 4.7315 ratingsLifestyleFreeData updated 2026-09-06
  5. Level Tool: Bubble Leveler Pro app icon

    Level Tool: Bubble Leveler Pro

    MONIQ TAP COMPANY LIMITED

    And measure surfaces accurately

    Measure horizontal and vertical surfaces with a . Use a laser for precise alignment. Check surface flatness with a spirit . Access inclinometer for angle measurements. Set and track levels for accurate tasks.

    ★ 4.735 ratingsUtilitiesFreeData updated 2026-09-06
  6. Millimeter Pro - screen ruler app icon

    Millimeter Pro - screen ruler

    VisTech.Projects LLC

    Measure objects, split parts, calculate ratios

    Measure objects using touch as or tape measure. Split objects into equal parts and calculate width/height ratios. Estimate diameter, angles, and divide circular objects. Switch between millimeters and inches for units.

    ★ 4.4108 ratingsUtilities$3.99Data updated 2026-09-21
  7. Units: Unit converter app icon

    Units: Unit converter

    Andreas Maier

    Convert and currencies instantly

    Convert of measurement and currencies. Switch between currencies like USD, EUR, JPY, and GBP. Convert lengths, masses, volumes, speeds, areas, information, pressure, power, time, and temperature.

    ★ 4.9261 ratingsProductivityFreeData updated 2026-09-30
  8. AR Ruler: Digital Tape Measure app icon

    AR Ruler: Digital Tape Measure

    Grymala sp. z o.o.

    Measure objects with AR precision

    Measure real-world objects using AR technology and a phone's camera. Calculate length, height, area, volume, and angles. Estimate distances and track measurements with a digital . Share results and save measurements for future reference.

    ★ 4.6970 ratingsProductivityFreeData updated 2026-09-14
  9. Barometer & Altimeter & Thermo app icon

    Barometer & Altimeter & Thermo

    ExaMobile S.A.

    Measure pressure and track altitude

    Measure atmospheric pressure and altitude using built-in GPS and pressure sensor. Automatically calibrate readings with local meteorological station data. Display current pressure and elevation levels. Save historical data for reference.

    ★ 4.89,529 ratingsUtilitiesFreeData updated 2026-09-13
  10. Measuring Tape, Photo Ruler app icon

    Measuring Tape, Photo Ruler

    Grymala sp. z o.o.

    With AR and traditional tools

    Distances and angles using augmented reality and on-screen rulers. Tap to mark points and calculate lengths. Export measurements as text or image. Sync with other devices for collaborative projects.

    ★ 4.22,613 ratingsProductivityFreeData updated 2026-09-10
  11. Measuring Tape: AR Ruler app icon

    Measuring Tape: AR Ruler

    Aram Meir

    Point and measure with AR camera

    Use AR technology to measure lengths, heights, and angles by pointing the camera at objects. Capture and save measurements with the photo . Check alignment using the built-in level tool.

    ★ 3.817 ratingsUtilitiesFreeData updated 2026-09-06
  12. Sound Meter app icon

    Sound Meter

    Hiep Pham

    Measure levels in decibels

    Measure levels in decibels with a real-time display. Access a decibel level reference table for hearing protection guidance. Save historical data for future review.

    ★ 4.414 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

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