# EyeQue PDCheck vs Pupillary Distance Ruler

The clearest difference is in-app purchases: EyeQue PDCheck at none against Pupillary Distance Ruler's 2. EyeQue PDCheck also leads on ratings volume (130 vs 3) and iOS requirement (12.0 vs 17.6). Pupillary Distance Ruler's advantage is ads (none vs shown) and rating (4.0 vs 3.6). On price and device support there is nothing between them.

Both are free to download. Pupillary Distance Ruler sells 2 in-app purchases, starting at $5.99 per year. EyeQue PDCheck asks for nothing beyond the download.

Pupillary Distance Ruler holds the better App Store score, 4.0 against 3.6. That said, the two scores are not equally well evidenced: EyeQue PDCheck has 130 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 31% of EyeQue PDCheck's written reviews are positive against 50% of Pupillary Distance Ruler's.

## The numbers

| Metric | EyeQue PDCheck | Pupillary Distance Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (130 ratings)](https://appshunter.io/ios/app/eyeque-pdcheck/id1442000116/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/pupillary-distance-ruler/id6752308010/reviews)** |
| Number of ratings | **130** | 3 |
| Positive reviews | 31.4% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | — |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 18 MB | 2 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EyeQue Corporation](https://appshunter.io/developer/1127114607) | [Krueger Systems, Inc.](https://appshunter.io/developer/299293363) |

## What reviewers say

### EyeQue PDCheck

[App page](https://appshunter.io/ios/app/eyeque-pdcheck/id1442000116)

Easily measure your pupillary distance (PD) using your smartphone and specialized frames. This app guides you through a simple selfie process to get an accurate PD measurement, essential for ordering glasses or using VR headsets.

**Highlights:** Measure pupillary distance (PD), Use smartphone camera for measurement, Requires PDCheck Frames, Selfie or friend-assisted photos, Adjustable pupil markers

**Features:** macOS Compatibility

**In-app purchases:** none


### Pupillary Distance Ruler

[App page](https://appshunter.io/ios/app/pupillary-distance-ruler/id6752308010)

Accurately measure your interpupillary distance (PD) using advanced iPhone sensors. Get precise results in seconds for ordering glasses, setting up VR, or tracking vision. Offers both free basic measurements and advanced pro features via in-app purchase.

**Highlights:** TrueDepth sensor accuracy, Fast, no-guesswork measurements, Free basic PD measurement, Pro features via in-app purchase, History and profile saving, PDF report export

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Yearly Subscription | $5.99 | per year |
| Pro Forever | $9.99 | one-time |


## Frequently asked questions

### Is EyeQue PDCheck free?

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

### Is Pupillary Distance Ruler free?

Pupillary Distance Ruler is free to download, with in-app purchases available.

### Which has better reviews, EyeQue PDCheck or Pupillary Distance Ruler?

Pupillary Distance Ruler is rated higher. EyeQue PDCheck averages 3.6 out of 5 from 130 ratings, while Pupillary Distance Ruler averages 4.0 from 3 ratings.

### Do EyeQue PDCheck or Pupillary Distance Ruler have ads?

EyeQue PDCheck shows ads; Pupillary Distance Ruler does not.

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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.*