# PD Measure Ruler — Pupillary Distance Measure Pro > Accurate pupillary distance measurement tool for eyeglasses and VR headsets. (iPhone/iPad app by VisTech.Projects LLC.) - Source: https://appshunter.io/ios/app/pd-measure-ruler/id6670557555 (this page in markdown: same URL + `.md`) - Developer: [VisTech.Projects LLC](https://appshunter.io/developer/620969851) - Category: Productivity, Utilities - Price: Free with in-app purchases - Rating: 4.10/5 from 36 App Store ratings · 19 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 24 MB - Languages: American English - Released: 2024-09-22 - Data updated: 2026-08-30 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/pd-measure-ruler/id6670557555/reviews.md ## What is PD Measure Ruler? Unlock the perfect fit for your eyeglasses with our PD Ruler App – your fast and accurate tool for measuring pupillary distance (PD) using your iPhone! Accuracy and verifiability of the result are the main priority of this application for precise inter pupillary distance measurement, making it the best app for ordering glasses online, or just keeping track of your eye measurements. *** Manual Measurement *** (Requires subscription) Our app includes a highly accurate manual measurement mode, that works for most devices. Follow the intuitive on-screen guides to ensure precise results every time, no matter what device you're using. *** Quick & Automatic *** (Requires subscription) PD Measurement Effortlessly measure your pupillary distance with just one tap on supported devices (iPhone X +). Using your iPhone camera's advanced features, our app automatically detects and calculates your PD in a matter of seconds – giving you precise results for all your eyewear needs. Perfect for Glasses & VR Headsets Whether you’re buying new eyeglasses, adjusting a VR headset, or simply checking your PD for other purposes, our app makes the process hassle-free and accurate. Key Features: - Manual Measurement Mode: Perfect for most devices, ensuring no one is left behind (with a subscription). - Automatic PD Measurement: Fast, precise results using your camera's advanced features (with a subscription). - Accuracy & Precision: Our algorithm is fine-tuned for optimal performance to give accurate readings. - User-Friendly Interface: Simple and clear instructions guide you through the measurement process effortlessly. Take the guesswork out of your eyeglass fitting process with our app. Enjoy seamless accuracy. Optimize Your Vision. Optimize Your Fit. Manual and Automatic measure features require a subscription to use. By subscribing to the app you will be able to enjoy the full functionality of the app and measure pd distance using the manual method, which works on all devices, and optionally the automatic method if your device is supported. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You can cancel your subscription at any time from your App Store account. Enjoy the app! Please contact support@vistechprojects.com for questions or inquiries. Terms of Use: https://www.vistechprojects.com/term-of-use Privacy Policy: https://www.vistechprojects.com/privacy-policy ## Key features - Manual PD measurement - Automatic PD measurement - Accurate and precise readings - User-friendly interface - Eyeglass fitting assistance - VR headset adjustment ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Monthly | $14.99 | per month | | Weekly | $7.99 | per 7 days | | Weekly | $4.99 | per 7 days | | Weekly | $2.99 | per 7 days | ## Recent user reviews (10 of 19) All indexed reviews: https://appshunter.io/ios/app/pd-measure-ruler/id6670557555/reviews.md ### 1/5 — Not Free as stated *2026-08-06* It makes you pay $5 to use it, (the manual doesn’t even work) and the automatic one gave a different answer every time. So not exactly accurate. ### 1/5 — awful *2026-05-14* makes you pay and then it doesn’t even work ### 5/5 — Tata *2026-01-30* Tata ### 1/5 — Not free *2026-01-12* Pay to use ### 1/5 — Don’t do this scam app *2025-12-01* Advertises as free to download tries to charge per week. Who needs a weekly pd measure. Such a scam. ### 1/5 — Utterly useless *2025-11-26* Comparing various PD apps to professional measurements and this is by far and away the worst. Wildly inaccurate, not even close and it’s the only one to charge so far! Absolute rip off. ### 1/5 — Blind faith? *2025-11-10* They expect you to pay for the app before you’re even allowed to try it out. ### 1/5 — Horrible *2025-10-24, version 1.0.4* Doesn’t work. You have to pay and i just wasted my money. The app gets stuck every 2 seconds. I didn’t even get to messure. ### 1/5 — Overpriced *2025-10-15* $5/ week for something you’ll use once? Should be free ### 1/5 — No pay no play *2025-08-11* money upfront or no dice! ## Frequently asked questions about PD Measure Ruler ### What is PD Measure Ruler used for? PD Measure Ruler is used to accurately measure your pupillary distance (PD). This measurement is crucial for ensuring the correct fit and alignment of eyeglasses and for adjusting VR headsets. ### How accurate is PD Measure Ruler? The app prioritizes accuracy and precision in its measurements. Its algorithm is fine-tuned for optimal performance, providing reliable readings for your eyewear needs. ### Does PD Measure Ruler have ads? No, PD Measure Ruler does not contain advertisements. The app is ad-free, allowing for an uninterrupted user experience. ### What are the subscription options for PD Measure Ruler? PD Measure Ruler offers several subscription plans, including weekly options at $2.99, $4.99, and $7.99, as well as a monthly plan at $14.99. These subscriptions unlock the manual and automatic measurement features. ### Can I use PD Measure Ruler on any device? The manual measurement mode works on most devices and requires a subscription. The automatic measurement feature is available on supported devices, typically iPhone X and newer, also requiring a subscription. ### How do I cancel my PD Measure Ruler subscription? You can cancel your subscription to PD Measure Ruler at any time through your App Store account settings. It is recommended to cancel at least 24 hours before the end of the current billing period to avoid renewal. ### What is the age rating for PD Measure Ruler? PD Measure Ruler has an age rating of 4+. This indicates that the app is suitable for users aged four and older. ### How often is PD Measure Ruler updated? PD Measure Ruler was last updated on March 13, 2025, with version 1.0.4. This suggests a commitment to ongoing development and improvements. ## Version history (last 5 releases) ### 1.0.4 — 2025-03-13 bug fixes and improvements ### 1.0.3 — 2024-10-01 bug fixes and improvements ### 1.0.2 — 2024-09-24 bug fixes and improvements ### 1.0.1 — 2024-09-22 bug and fixes, subscriptions ### 1.0.0 — 2024-09-18 No release notes. ## Apps similar to PD Measure Ruler | App | Rating | Price | Category | | --- | --- | --- | --- | | [AR Ruler: Digital Tape Measure](https://appshunter.io/ios/app/ar-ruler-digital-tape-measure/id1326773975) | 4.6 (961) | Free | Productivity | | [Measuring Tape, Photo Ruler](https://appshunter.io/ios/app/measuring-tape-photo-ruler/id1020133524) | 4.2 (2,610) | Free | Productivity | | [Tape Measure Camera AR Ruler](https://appshunter.io/ios/app/tape-measure-camera-ar-ruler/id1078675465) | 4.2 (775) | Free | Productivity | | [Planimeter GPS Area Measure](https://appshunter.io/ios/app/planimeter-gps-area-measure/id896375350) | 4.2 (491) | Free | Productivity | | [Photo Measure: Image Meter](https://appshunter.io/ios/app/photo-measure-image-meter/id6446276642) | 4.0 (119) | Free | Productivity | | [3D Snap: LiDAR Scanner & Ruler](https://appshunter.io/ios/app/3d-snap-lidar-scanner-and-ruler/id6477467417) | 3.9 (303) | Free | Productivity | ## More apps by VisTech.Projects LLC - [Unit Converter \| Converter4U](https://appshunter.io/ios/app/unit-converter-converter4u/id620969788) - [Millimeter Pro - screen ruler](https://appshunter.io/ios/app/millimeter-pro-screen-ruler/id631810777) - [Camera Measure - PartoMeter](https://appshunter.io/ios/app/camera-measure-partometer/id689675004) - [Planimeter GPS Area Measure](https://appshunter.io/ios/app/planimeter-gps-area-measure/id896375350) - [SolarMeter sun energy planner](https://appshunter.io/ios/app/solarmeter-sun-energy-planner/id1047880363) - [Partometer3D measure on photo](https://appshunter.io/ios/app/partometer3d-measure-on-photo/id1062639959) All apps by VisTech.Projects LLC: https://appshunter.io/developer/620969851 ## Related topics [optics pd ruler](https://appshunter.io/ios/topics/optics-pd-ruler) · [designer optics pd ruler](https://appshunter.io/ios/topics/designer-optics-pd-ruler) · [pd ruler](https://appshunter.io/ios/topics/pd-ruler) · [free pd measurement with glasseson app](https://appshunter.io/ios/topics/free-pd-measurement-with-glasseson-app) · [pd measurement free](https://appshunter.io/ios/topics/pd-measurement-free) · [measure pd for glasses](https://appshunter.io/ios/topics/measure-pd-for-glasses) · [warby parker pd tool](https://appshunter.io/ios/topics/warby-parker-pd-tool) · [pd eye measure free](https://appshunter.io/ios/topics/pd-eye-measure-free) · [glasses on pd](https://appshunter.io/ios/topics/glasses-on-pd) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*