# Pupillary Distance Measure X vs ShadowTimer

The clearest difference is price: ShadowTimer at Free against Pupillary Distance Measure X's $1.99. ShadowTimer also leads on rating (5.0 vs 4.5) and update cadence (every 2 months vs every 7 months). Pupillary Distance Measure X's advantage is in-app purchases (none vs 2) and ratings volume (178 vs 3). On ads, monetization model and device support there is nothing between them.

ShadowTimer is free to download; Pupillary Distance Measure X costs $1.99 up front. ShadowTimer sells 2 one-off in-app purchases. Pupillary Distance Measure X asks for nothing beyond the download.

ShadowTimer holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Pupillary Distance Measure X has 178 ratings behind it against 3, so its average is the more settled of the two.

Pupillary Distance Measure X ships an update every 7 months, ShadowTimer every 2 months. The most recent releases landed on October 29, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Pupillary Distance Measure X | ShadowTimer |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.5 (178 ratings)](https://appshunter.io/ios/app/pupillary-distance-measure-x/id1501962819/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/shadowtimer/id6756530472/reviews)** |
| Number of ratings | **178** | 3 |
| Positive reviews | 67.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 17 MB | 66 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [VisTech.Projects LLC](https://appshunter.io/developer/620969851) | [Michael Paulick](https://appshunter.io/developer/1861202322) |

## What reviewers say

### Pupillary Distance Measure X

[App page](https://appshunter.io/ios/app/pupillary-distance-measure-x/id1501962819)

This utility app automatically measures your pupillary distance using your iPhone's camera. Simply take a selfie and get an accurate reading to help with ordering glasses or adjusting VR headsets.

**Highlights:** Automatic PD measurement, Quick and accurate readings, Uses iPhone camera, Supports eyeglasses ordering, Helps adjust VR headsets

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick results
- 🎯 Accurate measurements
- 💡 Useful for ordering glasses
- ✅ Works as intended

**What reviewers complain about**

- ❌ Inconsistent results
- ❌ Does not work on all devices
- ❌ Requires specific phone models
- ❌ App prompts for review too early
- ❌ Technical issues/bugs

**Reported bugs**

- Does not work on iPhone 8 running iOS 16
- Does not work on Apple 12 Pro w/ iOS 15.7
- Does not work on 2nd gen iPhone SE
- Camera button not clickable
- Keeps prompting to move face farther away

**Requested features**

- Include left and right eye measurement with nasal bone consideration
- Allow saving of results
- Improve compatibility with older devices
- Provide clearer instructions within the app


### ShadowTimer

[App page](https://appshunter.io/ios/app/shadowtimer/id6756530472)

This app provides an immersive, atmospheric torch timer for tabletop role-playing games. It features a dynamic, burning torch that visually represents the passage of time, adding tension to gameplay. Designed for offline use with minimal distractions, it enhances the gaming experience.

**Highlights:** Animated, living torch flame, Customizable timer durations, Offline functionality, Clear, high-contrast visuals, Scalable text for all devices, Optional sound effects and haptics, Minimalist, distraction-free interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShadowTimer | $5.99 | one-time |
| Bearer of the First Light | $19.99 | one-time |


## Frequently asked questions

### Is Pupillary Distance Measure X free?

Pupillary Distance Measure X costs $1.99, with no in-app purchases.

### Is ShadowTimer free?

ShadowTimer is free to download, with in-app purchases available.

### Which has better reviews, Pupillary Distance Measure X or ShadowTimer?

ShadowTimer is rated higher. Pupillary Distance Measure X averages 4.5 out of 5 from 178 ratings, while ShadowTimer averages 5.0 from 3 ratings.

### Do Pupillary Distance Measure X or ShadowTimer have ads?

Neither Pupillary Distance Measure X nor ShadowTimer shows ads.

### Which is updated more often, Pupillary Distance Measure X or ShadowTimer?

Pupillary Distance Measure X ships an update every 7 months, and ShadowTimer every 2 months. Most recently, Pupillary Distance Measure X was updated on October 29, 2026 and ShadowTimer on October 8, 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.*