Comparison

PDCheck AR vs Opthy

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PDCheck AR

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
Read full description

Use Augmented Reality (AR) technology to instantly measure your pupillary distance, one of the numbers needed for ordering glasses. All you need to measure your pupillary distance is your phone! Disclaimer: Your phone must be iPhone X or newer and must support Face ID. Features Measures your far pupillary distance, including your left and right pupillary distance, for distance viewing Measures your near pupillary distance for near viewing No tape measure, credit card, or other objects required Works with all iPhones that have Face ID capabilities Perfect for ordering EyeQue’s Try-On Glasses before spending on designer glasses. Use for ordering eyewear or adjusting your virtual reality (VR) headset This app works with: iPhone X, XS, XR, XS Max, and later models that use Face ID technology

About

Opthy

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
Read full description

Pupillary Distance: The key to your perfect glasses. Discover Opthy, powered by global eyewear expert EssilorLuxottica. Get your Pupillary Distance just right with Opthy, the solution backed by EssilorLuxottica’s eyewear experts. Swiftly measure your Pupillary Distance (PD) with a few clicks, so you can find a comfortable and personalized fit for your perfect glasses. Moreover, experience the cutting-edge capability of turning your iPhone into a 3D body scanner and measurement device for purchasing prescription Rx glasses online with Opthy. Key Features: • Advanced contactless tool for PD measurements: Opthy's cutting-edge technology specializes in swiftly capturing Pupillary Distance (PD) measurement, revolutionizing the conventional process. • Quick IPD measurements for far focal lengths: Opthy offers quick Interpupillary Distance (IPD) measurements for far vision, allowing you to find a comfortable viewing experience for distant distances. • Order online prescription glasses with confidence: Opthy empowers you to confidently order prescription glasses online, knowing that you obtained personalized measurements for achieving a comfortable fit. About Pupillary Distance: Pupillary Distance is the distance between the center of your pupils, measured in millimeters. An average PD measurement is about 63mm. This crucial metric is essential when buying glasses, as it indicates the specific lens area you look through, helping you to achieve optimal comfort and clarity in your visual experience. Swift and User-friendly: Opthy has streamlined the process for you. All you need is your iPhone; the Opthy app will walk you through the quick and seamless scan. Once done, you'll receive the all-important Pupillary Distance measurement. Suitable for Everyone: Whether you wear glasses or not, Opthy caters to all adult users. It provides personalized Pupillary Distance measurements for compatible prescriptions. Prescription Compatibility: Opthy is compatible with single-vision prescription lenses between -5D and +5D. Please note that it is unsuitable for higher-powered prescriptions, bifocals, progressives, or multifocals. Professional in-person PD measurements are recommended for achieving the best fit and visual experience for individuals requiring more complex prescriptions. Age Restriction: For user safety, Opthy is not intended for use by persons under the age of 18. EssilorLuxottica prioritizes the well-being of our users and adheres to age-appropriate guidelines. Experience Cutting-edge Technology: Opthy harnesses cutting-edge technology to enhance your eyewear selection process. Its innovative approach to measuring Pupillary Distance (PD) empowers you with your personal PD so you can make confident decisions when purchasing glasses or adjusting your virtual reality (VR) headset.

Screenshots

PDCheck AR4 screens
Opthy4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard3 real differences · 7 level
PDCheck AR versus Opthy: the parameters behind the verdict, then further details
ParameterPDCheck AROpthy
PriceFreeFree
Rating4.9 (3.8K ratings) — better4.5 (2.9K ratings)
Positive reviews70.6% of reviews — better13.3% of reviews
Number of ratings3.8K — better2.9K
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better14.0
Further details — not scored
Size18 MB217 MB
Age rating4+12+
DeveloperEyeQue CorporationLuxottica Group SPA

Customer experience

PDCheck AR

All ratings3,016 ratings
Positive97.7%
Neutral1.2%
Negative1.1%
Written reviews85 reviews
Positive70.6%
Neutral4.7%
Negative24.7%

Opthy

All ratings2,938 ratings
Positive85.9%
Neutral3.1%
Negative11.0%
Written reviews180 reviews
Positive13.3%
Neutral6.1%
Negative80.6%

User reviews

PDCheck AR

From 3.8K App Store ratings

What we love

  • 🚀 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

Room to improve

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

Opthy

From 2.9K App Store ratings

What we love

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

Room to improve

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

Bugs and requests

PDCheck AR

Reported bugs

2 issues
  • Measure button not working
  • Measurements changing every time

Requested features

2 requests
  • Dark mode option
  • Ability to save and share measurements

Opthy

Reported bugs

3 issues
  • App crashes or freezes
  • Face not detected despite proper lighting
  • Incompatible with certain devices

Requested features

3 requests
  • Voice guidance for instructions
  • Progress indicator during measurement
  • Ability to save and view past measurements

In-app purchases

None

PDCheck AR

No in-app purchases

None

Opthy

No in-app purchases

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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