PDCheck AR vs Eyeblinkr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Eyeblinkr
This app uses your device's TrueDepth camera to monitor your eye blinking frequency. It can alert you if you haven't blinked in a while, helping to prevent dry eyes, especially during screen time. It works offline and supports a wide range of compatible Apple devices.
- TrueDepth camera eye blink tracking
- Dry eye prevention alerts
- Offline functionality
- Supported device list
- Real-time blink count
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IMPORTANT NOTE: TrueDepth Camera is needed !!! Please check the supported devices. How many times a minute do you blink your eyes? Usually, it's about 20 times/minute. However, when we are on the computer or playing a game, it can be 5 times/minute or even less. If you blink too less, your eyes will dry out. Eyeblinkr uses the TrueDepth camera to count your eye blink. It can sound a warning if you haven't blinked for a long time. Let's count your eye blink! Supported devices: - iPhone X（2017） - iPhone XS（2018） - iPhone XS Max（2018） - iPhone XR（2018） - iPhone 11（2019） - iPhone 11 Pro（2019） - iPhone 11 Pro Max（2019） - iPhone 12 mini（2020） - iPhone 12（2020） - iPhone 12 Pro（2020） - iPhone 12 Pro Max（2020） - iPhone 13 mini（2021） - iPhone 13（2021） - iPhone 13 Pro（2021） - iPhone 13 Pro Max（2021） - iPhone 14（2022） - iPhone 14 Plus（2022） - iPhone 14 Pro（2022） - iPhone 14 Pro Max（2022） - iPhone 15（2023） - iPhone 15 Plus（2023） - iPhone 15 Pro（2023） - iPhone 15 Pro Max（2023） - iPhone 16（2024） - iPhone 16 Plus（2024） - iPhone 16 Pro（2024） - iPhone 16 Pro Max（2024） - iPad Pro 11 inch（1st Gen）（2018） - iPad Pro 11 inch（2nd Gen）（2020） - iPad Pro 11 inch（3rd Gen）（2021） - iPad Pro 11 inch（4thGen）（2022） - iPad Pro 12.9 inch（3rd Gen）（2018） - iPad Pro 12.9 inch（4th Gen）（2020） - iPad Pro 12.9 inch（5th Gen）（2021） - iPad Pro 12.9 inch（6th Gen）（2022） - iPad Air（4th Gen）（2020） - iPad Air（5th Gen）（2022） Eyeblinkr works completely offline and does not store any TrueDepth related data.
Screenshots
Verdict
The clearest difference is price: PDCheck AR at Free against Eyeblinkr's $1.99. PDCheck AR also leads on rating (4.9 vs 2.7) and update cadence (every 3 months vs every 41 months). On ads, in-app purchases, device support and iOS requirement 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
PDCheck AR is free to download; Eyeblinkr costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PDCheck AR holds the better App Store score, 4.9 against 2.7. That said, the two scores are not equally well evidenced: PDCheck AR has 3.8K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 70% of PDCheck AR's written reviews are positive against 50% of Eyeblinkr's.
PDCheck AR ships an update every 3 months, Eyeblinkr every 41 months. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.
| Parameter | PDCheck AR | Eyeblinkr |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.9 (3.8K ratings) — better | 2.7 (3 ratings) |
| Positive reviews | 70.1% of reviews — better | 50.0% of reviews |
| Number of ratings | 3.8K — better | 3 |
| Update frequency | Every 3 months — better | Every 41 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | EyeQue Corporation | Flammy Design |
Customer experience
PDCheck AR
Eyeblinkr
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
Eyeblinkr
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PDCheck AR
No in-app purchases
Eyeblinkr
No in-app purchases
