Eye Measure – PD Ruler
Ramkumar Vellaisamy Medical iPhone
Eye Measure – PD Ruler is a free Medical app for iPhone by Ramkumar Vellaisamy. Rated 4.6/5 from 11 ratings. Requires iOS 17.0. Updated September 28, 2026.
- Rating
- 4.6
- 11 ratings
- Price
- Free
- on the App Store
- Size
- 41 MB
- Age 4+
- Updated
- Sep 28
- 2026 · v1.0.2
Screenshots
About Eye Measure – PD Ruler
Eye Measure – PD Ruler measures your pupillary distance (PD) in seconds with your iPhone's front camera — and keeps all your eye records in one private place. Measure PD in seconds • Align your face in the on-screen guide • The live scan detects both pupils and tells you when it's ready • Tap Save to store the result with a photo for reference Key Features • Far and near PD in millimeters, decimal-precise • Prescription Vault: photograph the front and back of your prescription and keep it next to your PD • Expiry reminders 60 and 7 days before your prescription runs out • PDF Report: export an optician-ready report with your PD and prescription photos • Full history with photos, notes and search • Share your results with your optician or online store • On-device processing: no photos uploaded, no account required • Available in 40+ languages Designed for everyday use Whether you're ordering glasses online, setting up a VR headset or keeping your family's prescriptions organized, Eye Measure makes it easy. Eye Measure Premium Measuring is free. Your exact PD, the Prescription Vault, PDF reports and sharing are part of Eye Measure Premium, available as an auto-renewing subscription or a one-time lifetime purchase. Premium supports Family Sharing, so one purchase covers the whole family. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage them anytime in your App Store account settings. Eye Measure is not a medical device. Always confirm your PD and prescription with an eye care professional. Support: [email protected] Privacy Policy: https://reku-indie.notion.site/Privacy-Policy-3038c096503c80099cabf39c57a32696?source=copy_link Terms of Use: https://reku-indie.notion.site/Terms-of-Service-3038c096503c8073abf7fc3d1449326d?source=copy_link
Ratings & reviews
4.6
11 ratings
What’s new
Version 1.0.2 · Updated September 28, 2026
The biggest update yet — Eye Measure is now your complete eye records app: • All-new guided measuring — a face guide, live scan and clear "ready" signal make accurate PD effortless • Prescription Vault — snap the front and back of your paper prescription, add notes, and keep everything next to your PD • Expiry reminders — get notified 60 and 7 days before your prescription runs out • PDF Report — export an optician-ready report with your exact PD and prescription photos • Beautiful new design — refreshed onboarding, home screen and animations throughout • Premium now includes Family Sharing — one purchase covers the whole family • Fully localized in 40+ languages Questions or feedback? Email us from Settings — we read everything.
App privacy
The developer, Ramkumar Vellaisamy, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
Used for: App Functionality
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Eye Measure – PD Ruler | 4.6 / 5 (11 ratings) | Free | September 28, 2026 | |
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| WaveFast - Fasting Tracker | 5.0 / 5 (1) | Free | Jul 19, 2026 | Compare |
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