Best Mm Ruler Free Apps

3.5😞(79 ratings)

FreeAdsIn-App Purchases

Measure lengths, widths, and diagonals accurately using your phone. Switch between metric and imperial units, and utilize flexible starting points for precise measurements in any direction. Features auto-calibration for minimal error and a screen lock to preserve readings.

What We Love

👍 Simple and easy to use
📏 Accurate measurements (for some)
💡 Useful for small objects
✨ Clean interface
🚀 Fluid performance
🛠️ Good basic functionality

Room to Improve

😠 Excessive and intrusive ads
🚫 Ads block measurements
🔊 Loud and shocking ads
💸 No option to pay for ad-free (or purchase lost)
📉 Inaccurate inch measurements (decimal vs. fractional)
⚠️ Shady download practices
⚫ Black screen issue
👆 Finger obscures measurements
📱 Inaccurate on specific devices
👎 Lost paid features after update

Ruler 2.0 - inch, mm, cm by Oleg Osipov

High measurement accuracy

Strong Contender

3.9😞(205 ratings)

Free

This app provides a precise on-screen measuring tool for your iPhone or iPad. Easily measure length and width in centimeters, millimeters, or inches, with options to save measurements as photos and customize the ruler's appearance. It's designed for accurate, user-friendly measurements.

What We Love

👍 Simple and easy to use
💡 Precise measurements (when working)
✨ Free with no ads
✅ Lightweight and small size
🎯 Good for small item measurements

Room to Improve

🐛 Frequent crashes
📏 Inaccurate measurements on newer phones
📱 Not optimized for high DPI screens
📉 Scale is off by ~50% on newer models
⚠️ Support link is shady

Ruler® by Tue Nguyen Minh

+ Photo Ruler & AR Measure

Worth Considering

Screen Ruler: Measure Length

4.3😞(35K ratings)

FreeIn-App Purchases

This app provides a versatile toolkit for all your measurement needs. It includes a classic ruler, a tape measure, and a camera ruler for precise measurements. Easily switch between units and document your findings by adding measurements directly to photos.

What We Love

🚀 Accurate measurements
👍 Easy to use
🔍 Convenient for small items
📏 Useful ruler tool

Room to Improve

💰 Paywall for basic features
⏱️ Limited free usage time
🔍 Inaccurate for larger objects
🙅‍♀️ Aggressive monetization tactics

More Mm Ruler Free apps to explore

CM, MM & Inch Measuring Tool

Dual units (cm/inches)Precision calibrationMagnifier mode

Turn your iPhone or iPad into a precise measuring tool. Easily measure lengths in centimeters or inches with features like magnifier mode and haptic feedback. Ideal for daily tasks, office use, DIY projects, and on-the-go measurements.

(23)

Includes Camera (AR) Ruler

Ruler •

On-screen ruler for small objectsAugmented Reality (AR) measuringMeasure linear sizes in cm/inches

Measure objects and distances with an on-screen ruler and augmented reality. Supports inches and centimeters, with features for linear sizes, angles, area, volume, and more. Save your measurements for later use.

Ruler, Altimeter and More

Portable rulerProtractorSpirit level

This utility app provides a portable ruler for on-the-go measurements. It also includes a suite of additional tools like a protractor, spirit level, and various meters for diverse measurement needs.

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Fast, Handy Measuring Tool

This app provides a digital ruler for measuring the length and diameter of small objects directly on your device. It features a millimeter scale and allows for easy sliding to measure.

Digital ruler functionalityMillimeter scaleDiameter measurement

📊 Productivity

(1)

Ruler - Screen accurate ruler

measuring app and ruler app

Instant touch measurementTwo-finger measurementReal-time results (cm/inches)

Transform your device into a precise measuring tool. Measure objects, distances, and spaces with fingertip accuracy. Offers real-time results in both metric and imperial units, with professional calibration for your specific device.

Simple Ruler: Tape Measure

(0)

free

Measure length, width & angles

by NETIGEN Kluzowicz sp. j.

Measure objects on screenCentimeter and inch scalesHorizontal and vertical display modes

Measure objects directly on your smartphone screen without needing traditional tools. This utility offers an easy-to-use interface with accurate scales in centimeters and inches, supporting both horizontal and vertical measurements.

This app allows you to measure lengths accurately in both inches and centimeters. It provides a simple and straightforward tool for quick measurements.

Measure in inchesMeasure in centimetersAccurate length measurement

📊 Productivity

(934)

RulerMe - Ruler & AR Measure

inches centimeter millimeters

Transform your device into a versatile digital toolkit for precise measurements. Create 2D and 3D floor plans, scan rooms, and measure distances with advanced AI and computer vision. Ideal for DIY projects, home renovations, and professional use.

Tape MeasureRulerHeight Tool

(89K)

Multifunctional Ruler・Level

Tape Measure & Ruler Арр

Digital ruler and measuring tapeImperial and Metric unitsRangefinder for distance measurement

This app functions as a digital measuring tool, allowing you to measure objects and distances with accuracy. It also enables you to create sketches with text annotations and share your measurements and designs.

(4.3K)