Best Vertical Ruler Apps

239+ iOS apps curated and reviewed

3.7 avg rating

20 free apps

Updated October 2026

Whether you're new to vertical ruler or looking for an upgrade, our curated collection of 239+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Vertical Ruler Apps (October 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Ruler®	Free	4.3★ (35K)	No	Yes	Oct 2026
2	Epic Ruler	Free	1.0★ (4)	No	No	Aug 2026
3	Super Ruler	Free	—	Yes	No	May 2026
4	Ruler •	Free	4.2★ (413)	Yes	No	Oct 2026
5	Ruler - Accurate Ruler	Free	2.6★ (40)	No	No	Oct 2026
6	RulerApp	Free	—	—	No	Sep 2026
7	Ruler 2.0 - inch, mm, cm	Free	3.9★ (205)	No	No	Oct 2026
8	Ruler - Screen accurate ruler	Free	—	No	No	Oct 2026

Top Picks for Vertical Ruler

#1

Ruler® by Tue Nguyen Minh

+ Photo Ruler & AR Measure

Editor's Choice

4.3😞(35K ratings)

FreeIn-App Purchases

Ruler® screenshot 1

Ruler® screenshot 2

Ruler® screenshot 3

Ruler® screenshot 4

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

#2

Epic Ruler by Chih-Hao Chen

A classic ruler

Strong Contender

1.0(4 ratings)

FreeAds

Epic Ruler screenshot 1

Transform your smartphone into a portable measuring tool. Accurately measure lengths in both inches and centimeters directly from your device.

#3

Super Ruler by Hany Elmehy

Super Smart Ruler

Worth Considering

0.0(0 ratings)

FreeAds

Super Ruler screenshot 1

Super Ruler screenshot 2

Super Ruler screenshot 3

Super Ruler screenshot 4

Super Ruler screenshot 5

More Vertical Ruler apps to explore

Includes Camera (AR) Ruler

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.

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

Ruler - Accurate Ruler

Ruler - Accurate Ruler

Ruler - Accurate Ruler

This application provides a precise measurement tool by rendering according to your device's screen width specifications. It has been tested on a wide range of Apple devices to ensure accuracy for your measuring needs.

Accurate screen-based renderingDevice-specific calibrationWide device compatibility

📊 Productivity

by Mathieu Rancourt

Ruler 2.0 - inch, mm, cm

Ruler 2.0 - inch, mm, cm

Ruler 2.0 - inch, mm, cm

High measurement accuracy

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.

On-screen rulerMeasure length and widthCentimeters, millimeters, inches

Ruler - Screen accurate ruler

Ruler - Screen accurate ruler

Ruler - Screen accurate ruler

measuring app and ruler app

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.

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

Ruler: Measure, Level & Tools

Ruler: Measure, Level & Tools

Ruler: Measure, Level & Tools

Ruler, level & compass

Ruler: CM, MM & Inches

Ruler: CM, MM & Inches

Ruler: CM, MM & Inches

Actual Size, Auto-Calibrated

This app provides a highly accurate, actual-size ruler that adapts to any screen. It offers dual-edge measurement, a precision caliper mode, and universal calibration for reliable real-world measurements. It functions offline and is designed for various devices.

Actual-size accuracy on any screenDual-edge metric and imperial scalesPrecision caliper mode for thickness

free with in-app purchases

Quick Measure - Precise Ruler

Quick Measure - Precise Ruler

Quick Measure - Precise Ruler

AR Measurement & Smart Tape

This utility app provides a digital and augmented reality ruler for precise measurements. It includes features like unit conversion, a built-in level, and the ability to record and store measurement data.

Digital ruler for precise length measurementsAR ruler for measuring distances in real-world environmentsMeasurement recording and storage

Ruler - Scale Ruler

Ruler - Scale Ruler

Ruler - Scale Ruler

Various scales can be set!

This app displays various measurement scales for length, including meters and inches. It allows users to set magnification ratios and reduced scales for different applications. Users can calibrate the ruler and adjust PPI settings for accurate measurements.

Display various measurement scalesSet magnification ratiosSet reduced scales

📊 Productivity

free with in-app purchases

Life-Size Ruler

Life-Size Ruler

Life-Size Ruler

Smartphone as a Ruler

Transform your smartphone into a precise measuring tool. This utility app allows you to measure lengths and distances directly on your device's screen. Ideal for quick estimations and practical applications.

Smartphone as a rulerMeasure lengthsMeasure distances

free with in-app purchases

Unlimited-Length Visual Ruler

Unlimited-Length Visual Ruler

Unlimited-Length Visual Ruler

Measuring Tape On Screen

Transform your device into an extended measuring tool. This application allows you to measure objects of any length directly on your screen, supporting both inches and centimeters. Its intuitive interface makes precise measurements simple.

Unlimited-length measurementInch and centimeter supportBack to top function

Ruler - measuring scale

Ruler - measuring scale

Ruler - measuring scale

Measure with your phone

This utility app uses augmented reality to measure the length and area of real-world objects using your smartphone's camera. It offers unlimited measurements and an ad-free experience with premium subscriptions.

Augmented reality measurementMeasure length and areaHigh precision with AR Kit

free with in-app purchases

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

free with in-app purchases

Tape Measure & Ruler Арр

Tape Measure & Ruler Арр

Tape Measure & Ruler Арр

Multifunctional Ruler・Level

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.

Digital ruler and measuring tapeImperial and Metric unitsRangefinder for distance measurement

free with in-app purchases

Measure lengths

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

free with in-app purchases

Real Ruler - Accurate Measure

Real Ruler - Accurate Measure

Real Ruler - Accurate Measure

Actual-size on-screen ruler

TrueRuler: Pocket Ruler

TrueRuler: Pocket Ruler

TrueRuler: Pocket Ruler

Measure in cm and inches

FAQ about Vertical Ruler

What are the best vertical ruler apps for iPhone?

Ruler® tops our vertical ruler apps ranking as of October 2026, with a 4.3-star average from 35K App Store ratings, and it's free to download.

Are there free vertical ruler apps for iPhone?

Yes — 20 of the top vertical ruler apps we rank are free to download, including Ruler® and Epic Ruler.

Does Ruler® have ads or in-app purchases?

Ruler® has no ads and offers in-app purchases, according to its App Store listing as of October 2026.

How many vertical ruler apps are on the App Store?

We track 239+ vertical ruler apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.