248+ iOS apps curated and reviewed
Every iPhone needs a few good designer optics pd ruler apps. We benchmark 248+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (585) | No | Yes | Aug 2026 |
| 2 |  | Free | 4.8★ (22K) | No | No | Aug 2026 |
| 3 |  | Free | 4.1★ (36) | No | Yes | Aug 2026 |
| 4 |  | Free | 4.7★ (509) | No | Yes | Aug 2026 |
| 5 |  | Free | 3.6★ (23) | Yes | Yes | Aug 2026 |
| 6 |  | Free | 1.0★ (4) | No | No | Aug 2026 |
| 7 |  | Free | — | Yes | No | May 2026 |
| 8 |  | Free | — | No | Yes | Aug 2026 |
Measure your pupillary distance accurately using augmented reality and your device's advanced camera. This app provides measurements for both near and far sight, essential for prescription eyeglasses and VR headsets. Keep a history of your measurements for easy reference.
Transform your iPhone into a precise 3D scanner for measuring pupillary distance and segment height. Get accurate measurements for ordering prescription glasses online with confidence, eliminating the need for manual tools.
Accurately measure your pupillary distance (PD) for eyeglasses and VR headsets. Offers both manual and automatic measurement modes for precise results. Optimize your eyewear fit with this user-friendly tool.
This app measures pupillary distance (PD) and fitting heights using your device's camera. It offers various optical calculators for lens adjustments and acuity estimations. Accurate measurements are crucial for optimal lens centering and multifocal lens positioning.
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.
Transform your smartphone into a portable measuring tool. Accurately measure lengths in both inches and centimeters directly from your device.
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.
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.
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 uses augmented reality to provide a holographic measuring stick with a detailed ruler. It offers natural interaction for accurate measurements up to 10 feet or 9 meters, with precision down to 1/16 inch or 1mm.
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.
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.
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.
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.