# PDCheck AR vs Opthy

The clearest difference is review sentiment: PDCheck AR at 71% against Opthy's 13%. PDCheck AR also leads on rating (4.9 vs 4.5). Opthy's advantage is update cadence (monthly vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PDCheck AR holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 3.8K and 2.9K respectively. Written reviews point the same way: 71% of PDCheck AR's written reviews are positive against 13% of Opthy's.

PDCheck AR ships an update every 3 months, Opthy monthly. Both last shipped on September 29, 2026.

## The numbers

| Metric | PDCheck AR | Opthy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (3.8K ratings)](https://appshunter.io/ios/app/pdcheck-ar/id1563806777/reviews)** | [4.5 (2.9K ratings)](https://appshunter.io/ios/app/opthy/id1624663408/reviews) |
| Number of ratings | **3.8K** | 2.9K |
| Positive reviews | **70.6% of reviews** | 13.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 18 MB | 217 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [EyeQue Corporation](https://appshunter.io/developer/1127114607) | [Luxottica Group SPA](https://appshunter.io/developer/426128459) |

## What reviewers say

### PDCheck AR

[App page](https://appshunter.io/ios/app/pdcheck-ar/id1563806777)

Instantly measure your pupillary distance using your phone's camera and augmented reality. This app provides accurate measurements for both distance and near viewing, essential for ordering glasses or adjusting VR headsets. Compatible with Face ID-enabled iPhones.

**Highlights:** Measures far pupillary distance, Measures near pupillary distance, No external tools required, Compatible with Face ID iPhones, Share results via email, Useful for ordering eyewear, Adjust VR headset fit

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick and easy to use
- 👍 Straight-forward, no fuss
- 👍 Accurate and consistent measurements
- 👍 Detailed measurements (far PD, near PD, individual eye PDs)
- 👍 Convenient for online orders

**What reviewers complain about**

- 🐛 Inconsistent or inaccurate measurements
- 🐛 Doesn't work on some devices

**Reported bugs**

- Measure button not working
- Measurements changing every time

**Requested features**

- Dark mode option
- Ability to save and share measurements


### Opthy

[App page](https://appshunter.io/ios/app/opthy/id1624663408)

Measure your Pupillary Distance (PD) accurately with this app, leveraging advanced technology for personalized glasses fitting. It transforms your iPhone into a measurement device, enabling confident online prescription glasses purchases.

**Highlights:** Contactless PD measurement, Quick IPD for far vision, Order prescription glasses online, iPhone 3D body scanner, Personalized fit for glasses

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick and easy
- 📐 Accurate measurements
- 🤖 Clear instructions

**What reviewers complain about**

- 🤔 Inconsistent results
- 🤯 Difficult to use
- 🕰️ Time-consuming process
- 🔍 Lighting issues
- 🤖 Unreliable app

**Reported bugs**

- App crashes or freezes
- Face not detected despite proper lighting
- Incompatible with certain devices

**Requested features**

- Voice guidance for instructions
- Progress indicator during measurement
- Ability to save and view past measurements


## Frequently asked questions

### Is PDCheck AR free?

PDCheck AR is free to download, with no in-app purchases.

### Is Opthy free?

Opthy is free to download, with no in-app purchases.

### Which has better reviews, PDCheck AR or Opthy?

PDCheck AR is rated higher. PDCheck AR averages 4.9 out of 5 from 3.8K ratings, while Opthy averages 4.5 from 2.9K ratings.

### Do PDCheck AR or Opthy have ads?

Neither PDCheck AR nor Opthy shows ads.

### Which is updated more often, PDCheck AR or Opthy?

PDCheck AR ships an update every 3 months, and Opthy monthly. Most recently, PDCheck AR was updated on September 29, 2026 and Opthy on September 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*