196+ iOS apps curated and reviewed
The best accurate ruler apps on iPhone average 4.1★ across 196+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
A portable measuring tool app that provides a range of features including a ruler, protractor, plumb line, spirit level, altimeter, air pressure and location meter, decibel meter, and ordinal date converter, allowing you to measure and calculate various parameters with your phone. Download it now to have a versatile measuring tool always at your fingertips.
A convenient tool for measuring objects using your phone's camera. Simply snap a photo and use the app to measure the dimensions of objects. Try it out now for easy and accurate measurements!
An augmented reality measuring tool that offers precise measurements in inches or centimeters with automatic device adaptation, endless scrolling, and easy touch-screen functionality. Measure lengths and distances accurately for free with this flexible and limitless ruler app!
An app that ensures accurate measurements by adapting its ruler to the specific screen width of your device, tested on various iPhone, iPad, and iPod models. Get precise measurements on your device today!
Access a powerful toolkit through augmented reality, including features like Tape Measure, Ruler, Height Tool, and more. Join over 5,000,000 users already benefiting from precise measurements for various tasks.
Turn your mobile device into a precise measuring tool that's always with you, and easily measure various lengths with confidence using a clean and intuitive interface. Download now and start measuring like a pro with features like dual units, precision calibration, and haptic feedback!
Measure anything with a handy digital ruler and create sketches with text editing options using this smart electronic measuring tool app. Features include imperial and metric units, rangefinder, sketch mode, and sharing capabilities. Subscription unlocks additional features like the Area Tool, Undo, Flashlight, and Magnet.
A powerful AR tape measure tool that uses augmented reality technology to measure real-world objects with your smartphone's camera. Features include measuring linear sizes, distances, angles, area, volume, and height accurately. Try our Premium subscription for ad-free experience and unlimited projects. [Call-to-action: Experience precise measurements with AR technology today!]
A high-precision ruler app for iPhone and iPad featuring accurate measurement in inches, mm, and cm. Save measurements as photos, select from three ruler colors, and easily toggle between different units. Enjoy precise measurements with the ability to save results to your device's Camera Roll.
Easily measure lengths in both inches and centimeters with this convenient application. Simply download now to streamline your measuring needs.
This app allows you to measure distances and angles using your device's motion-sensing technology. It combines a tape measure, ruler, protractor, and goniometer in one, offering quick and accurate measurements for various tasks. Try it out for free and impress your friends with its precision. Visit the website for more information.
A versatile measurement app offering both on-screen and AR ruler functionalities. Measure linear sizes, angles, area, volumes, heights, and more with precision. Try it out for all your measuring needs!
Experience a revolutionary way to measure with your iPhone using Ruler AR - Tape Measure. Utilizing Apple ARKit and augmented reality, get precise dimensions of objects using your phone's camera. Features include measuring distance, length, height, area, and angles, with the option to save measurements with ease. For premium functionality and ad removal, consider the Premium Membership Weekly subscription.
Measure lengths on the go with the latest AR technology on this app. Choose from single measure ruler, chain measure ruler, or perimeter measure ruler to effortlessly measure lengths with different colors for distinction.
Measure anything easily with our powerful AR measuring tool that utilizes your device's camera and advanced AI technology. From simple lengths to complex angles, this app serves as the ultimate measuring tool right in your pocket.
Measure length conveniently anytime and anywhere with this screen ruler application, offering various ruler classifications, custom sizing, screen lock, screenshot capture, child mode, and easy contact options for support. Explore the versatility of length measurements on your phone with Ruler ME!
Measure anything with your iPhone using this versatile measurement app. Features include tape measure, laser level, stud finder, measurement history, and more. Experience augmented reality tools on devices compatible with ARKit and A9 processor or later.