247+ iOS apps curated and reviewed
Every iPhone needs a few good designer optics pd ruler apps. We benchmark 247+ 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 | 4.8★ (22K) | No | No | Sep 2026 | |
| 2 |  | Free | 4.1★ (36) | No | Yes | Sep 2026 | |
| 3 |  | Free | 4.6★ (592) | No | Yes | Sep 2026 | |
| 4 |  | Free | 4.3★ (35K) | No | Yes | Sep 2026 | |
| 5 |  | $3.99 | 4.4★ (108) | No | No | Aug 2026 | |
| 6 |  | Free | — | — | No | Sep 2026 | |
| 7 |  | Free | 1.0★ (4) | No | No | Aug 2026 | |
| 8 |  | Free was $0.99 | — | No | No | Aug 2026 |
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.
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.
