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 81–100 of 1,000 ranked alternatives.

  1. Decibel dB – Sound Level Meter app icon

    Decibel dB – Sound Level Meter

    ITincubator UAB

    Measure noise levels in real time

    Measure ambient noise and levels in real time with readings and graphical displays. Track noise exposure over time using NIOSH or OSHA standards. View numerical and visual representations of levels.

    ★ 4.7660 ratingsUtilitiesFreeData updated 2026-09-06
  2. Decibel Meter - dB app icon

    Decibel Meter - dB

    Devnex B.V.

    Measure sound levels and display graphs

    Measure sound levels with a decibel meter that displays current, maximum, and average values. View values on a gauge and in a graph. Set and track sound level measurements. Share results directly. No in- purchases required.

    ★ 4.6717 ratingsUtilitiesFreeData updated 2026-09-27
  1. Bubble Level & Ruler Measure app icon

    Bubble Level & Ruler Measure

    KuXun Technology Co., Ltd.

    Detect inclination

    Detect inclination using a digital . angles and ensure surfaces are . Includes a straight and 2D for precise measurements. Place device against surfaces to check alignment.

    ★ 4.29 ratingsUtilitiesFreeData updated 2026-09-06
  2. Compass++ app icon

    Compass++

    KleinCodes, LLC

    Compass altitude ruler and map

    The app provides a compass, altitude display, ruler, and map. It is designed for both expert and beginner explorers.

    ★ 3.6464 ratingsUtilitiesFreeData updated 2026-11-13
  3. ToolX: Pocket Measure Ultimate app icon

    ToolX: Pocket Measure Ultimate

    Ngoc Thanh Pham

    Length, angles, and pressure

    Lengths and angles using a digital ruler and protractor. Detect tilt, pressure, and metal with built-in sensors. Calculate distances and heights with realistic calibration. Sync measurements across devices and export data for analysis.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
  4. Ruler / Measuring Tape app icon

    Ruler / Measuring Tape

    Clafou Ltd

    Measure with your screen

    Measure objects using screen size, augmented reality, or printed rulers. Place virtual on surfaces with ARKit. Print rulers via AirPrint. Compare printed results with on-screen measurements. No ads, in- purchases, or tracking.

    ★ 4.4223 ratingsUtilitiesFreeData updated 2026-09-13
  5. Super Swiss Knife app icon

    Super Swiss Knife

    UTOOO INC

    Precise tools for every situation.

    The app provides a ruler, angle ruler, protractor, flashlight, compass, level, picture hanging aid, lead tool, distance measurement, and magnifying glass. It meets various measurement needs for users at home or while traveling.

    ★ 3.112 ratingsUtilitiesFreeData updated 2026-11-09
  6. Terrain Radar Altimeter app icon

    Terrain Radar Altimeter

    Joerg Nestele

    Discover elevation with sensor data.

    The app measures the elevation of locations within a 500-meter radius using device sensors and internet-based geo information. It calculates altitudes in real time and displays them in meter or feet.

    ★ 4.7772 ratingsNavigationFreeData updated 2026-10-02
  7. Wall Stud Finder Beam Detector app icon

    Wall Stud Finder Beam Detector

    田亮 王

    Detect nails, screws, and metal objects

    Detects metal studs, nails, and screws in walls using magnetometer. Identifies hidden pipes, conduits, and rebar. Alerts for live electrical wiring via magnetic field detection. Provides visual indicators for detected objects.

    ★ 4.696 ratingsUtilitiesFreeData updated 2026-09-06
  8. Tape Measure Camera AR Ruler app icon

    Tape Measure Camera AR Ruler

    IBN Software GmbH

    Dimensions with AR

    Room dimensions using augmented reality. Tap to mark points and view real-time 3D measurements for width, length, height, and distance. Export measurements and save data for future reference.

    ★ 4.2774 ratingsProductivityFreeData updated 2026-09-10
  9. Units Plus Converter app icon

    Units Plus Converter

    Alan Mrvica

    Swap currency with a single button press

    Convert across 12 categories including area, currency, data, distance, temperature, and time. Swap by pressing a button on the keypad. View live currency updates for 155 world currencies every 15 minutes. Supports iPad Split View.

    ★ 4.98,416 ratingsUtilities$19.99Data updated 2026-10-05
  10. Inch Converter app icon

    Inch Converter

    Paul Robbins

    Convert decimal lengths to fractions.

    The app converts decimal length measurements to imperial mixed fractions of an inch. Users can choose under or over rounding and set the desired ruler increment.

    ★ 3.513 ratingsUtilities$0.99Data updated 2026-10-14
  11. The Tape Measure & 3D Scanner app icon

    The Tape Measure & 3D Scanner

    AppFusion OU

    Objects with AR precision

    Objects using augmented reality to determine length, height, and area. Align the phone's camera with the object and tap to get precise measurements. Share results via email or messaging apps.

    ★ 4.43,477 ratingsUtilitiesFreeData updated 2026-09-06
  12. MilGPS app icon

    MilGPS

    Cascode Labs Pty Ltd

    Navigate with MGRS coordinates and waypoints

    Display current location and customizable info on large text screens. Create waypoints using location, crosshairs, or coordinates. Organize waypoints into overlays and navigate to them with arrows or maps. Track movement and view location details.

    ★ 4.85,548 ratingsNavigation$12.99Data updated 2026-11-15
  13. Drawboard PDF Annotate, Markup app icon

    Drawboard PDF Annotate, Markup

    Drawboard Pty Ltd

    Edit PDFs, annotate, and share securely

    Create and edit PDFs with tools, drawing features, and text annotations. Convert documents to PDF, add signatures, and organize pages. Access files across devices and store them in the cloud. Share and export PDFs in various formats.

    ★ 4.81,873 ratingsProductivityFreeData updated 2026-09-10
  14. Water Eject Shortcut app icon

    Water Eject Shortcut

    Atul Brahmbhatt

    From your speakers

    Remove from speakers using sound waves. Measure decibel levels to monitor volume. Display neighbor's audio output for visibility. Offer ad-free operation for uninterrupted use.

    ★ 4.3497 ratingsMusicFreeData updated 2026-09-06

How we rank alternatives

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