250+ iOS apps curated and reviewed
Finding the right ruler app free can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (45K) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 3.1★ (1.6K) | No | No | Aug 2026 |
| 3 |  | Free | 4.5★ (1K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.2★ (399) | Yes | No | Aug 2026 |
| 5 |  | Free | 4.4★ (88K) | No | Yes | Aug 2026 |
| 6 |  | Free | 3.7★ (3) | No | No | Aug 2026 |
| 7 |  | Free | 4.3★ (35K) | No | Yes | Aug 2026 |
| 8 |  | Free | 4.3★ (1K) | Yes | Yes | Aug 2026 |
This augmented reality app transforms your phone into a versatile measuring tool. Accurately measure distances, surfaces, angles, and even detect studs. Visualize furniture placement and create floor plans with ease.
Transform your device into a digital tape measure. Quickly gauge the size of real-world objects, determine a person's height, and automatically get dimensions for rectangular items. Save and share your measurements easily.
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.
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.
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.
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.
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.
This app turns your device into a versatile ruler and tape measure using advanced AR technology. It offers precise measurements for objects, rooms, and complex shapes, along with unit conversion and a history log. Ideal for professionals and everyday users needing accurate measurements.
Measure objects using your device's screen, augmented reality, or by printing a ruler. Offers three distinct methods for on-demand measurement without physical tools.
This utility app uses augmented reality to measure lengths and areas in the real world. Simply point your device's camera to get accurate measurements.
This utility app measures land area, perimeter, and distance with high accuracy. It offers multiple input methods including GPS and manual entry, and supports various units of measurement. Export your plans in KML or DXF formats for use in other software.
Transform your phone into a precise measuring device using augmented reality. Measure distances, surfaces, and object sizes with an intuitive interface and accurate results.
Transform your phone into a powerful measuring tool using augmented reality. Accurately measure length, height, and area of objects simply by pointing your camera. Includes a bubble level for precise surface alignment.
Transform your device into a precise digital caliper for measuring objects in inches and millimeters. Features intuitive drag-and-measure functionality and accurate screen calibration using common items.
This augmented reality tool uses your phone's camera to measure real-world objects. Save measurements with photos, switch between imperial and metric units, and share your findings as PDFs. It's designed for professionals in fields like engineering and construction.
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.
This tool uses your device's camera to measure the distance between two points on screen. Simply tap to set start and end points, and get instant results in inches and millimeters.
This app transforms your device into a versatile digital measuring tool. Utilize augmented reality for accurate line, height, distance, and volume measurements. It also includes a compass and level tool, with options to save and share your results.
This app allows you to measure lengths accurately in both inches and centimeters. It provides a simple and straightforward tool for quick measurements.