The iPhone operating system contains a built-in digital measurement tool that often goes unnoticed by many users, sitting silently within the Utilities folder since its launch in 2018 without intensive promotional campaigns from Apple. This tool relies primarily on the phone's camera to measure dimensions, while iPhone models equipped with a LiDAR sensor, such as Pro versions starting from the iPhone 12 Pro, possess higher and more accurate capabilities that rely on invisible laser beams to estimate depth.
The app is compatible with most modern iPhone models, dating back to the iPhone 6s and the first-generation iPhone SE, with the ability to re-download the app from the App Store if it was previously deleted. Pro models offer advanced features including instant measurement of people's heights, guide lines that snap to edges, a ruler view with clear markings when approaching objects, and a list that saves temporary measurements for the current session.
How to Use the Measure App and Its Practical Mechanisms
Running the app requires moving the phone slowly at first to scan the surrounding environment and ensure measurement accuracy. Once the scan is complete, the user can select the start and end points via the add button to obtain instant dimensions, with options available to save a screenshot or undo steps. The app also includes a dedicated Level tab to measure surface tilt or compare the angles of two surfaces.
Practical Uses and Technical Limitations
The tool is useful and fast for ordinary daily tasks such as measuring luggage at airports or matching furniture dimensions while shopping. Despite its ease of use, Apple emphasizes that the app works most efficiently with objects located at distances ranging from two to ten feet that have clear edges, stressing the necessity of using traditional measuring tools for high-precision or high-stakes projects.
The Stance of Android Systems on Built-in Measurement Tools
On the other hand, the Android platform gradually lacks official, integrated, and stable native alternatives. Google has abandoned its previous app, while Samsung is moving to discontinue the Quick Measure app by the end of 2026 with promises of its return in the future with improved services, leaving users with options that rely on third-party apps, which often face criticism due to annoying advertisements and subscriptions.