Glaucoma Calc Downloads & RevenueGlaucoma Calc · App Store
Glaucoma Calc is #87 in Medical Paid in United States and charting in 6 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperOptical Directions Consulting
CategoryMedical
Price2.99 USD
Released
Rating★ 5.0 (3)
Version2.0
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)500+ worldwide
📈Entered the top 100📈Charting in a new country🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 8 events in the last 12 months
- 📈Glaucoma Calc entered the top 100Top Paid · Medical · US
- 📈Glaucoma Calc charting in a new countryUnited States
- 📈Glaucoma Calc entered the top 100Top Paid · Medical · DE
- 📈Glaucoma Calc charting in a new countryGermany
- 📈Glaucoma Calc charting in a new countrySouth Korea
- 📈Glaucoma Calc charting in a new country in 2 chartsIndia · Italy
- 🆕Glaucoma Calc first spotted by AppInsider#58 in Top Paid · Medical · Canada
- 🆕Glaucoma Calc released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
3 ratings
Measured
Best rank now
#87
Medical PaidMeasured
Glaucoma Calc on the App Store
App details
App ID
334351011
Publisher
Rob McQualter
On the store since
Oct 2009
17 years on the store
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad · Watch
Universal purchase
Content rating
4+
Languages
1
EN
Size
7 MB
Also listed in
Health & Fitness
Glaucoma Calc downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | MedicalPaid | #87 |
 South Korea | MedicalPaid | #142 |
 France | MedicalPaid | #120 |
 Brazil | MedicalPaid | #153 |
 India | MedicalPaid | #181 |
 Italy | MedicalPaid | #161 |
Apps near Glaucoma Calc on the chart
Medical Paid, around #87.
Ratings
App Store, worldwide.
Rating
5.0 ★
3 ratings
Measured
Ratings
3
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Medical apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Glaucoma Calc
Glaucoma Calc can be used to estimate the risk of a patient with ocular hypertension developing glaucoma within 5 years.
The ONLY calculator that lets you enter your field measurements YOUR way. Easy, single-screen interface, for fast decision-making in a busy practice. The original OHTS calculator is still the best. Now with easy entry for both eyes, reducing the workload on your brain.
It uses the same calculation data as some other online calculators and electronic single-purpose calculators. However, being on your iPhone means you always have it available at all times.
It also has the benefit of having full support for all three major perimeters: Humphrey, Medmont and Octopus. No manual conversion is required.
And, being an iPhone application, its really simple to use, everything happens on just one screen, enter your five parameters (Age, IOP, C/D ratio, CCT and PSD/PD/LV) and the glaucoma risk is displayed.
Now includes an Apple Watch app that lets you calculate your patients' glaucoma risk without leaving your wrist!
The Apple Watch app works independently of the iPhone app, you don't even need your iPhone with you for the app to work. A Complication is included to give you quick access to the last calculated risk value, and to allow one-touch access to the app if you are using it regularly.
Please remember that this application is purely an aid, and is not a replacement for clinical judgement.
The ONLY calculator that lets you enter your field measurements YOUR way. Easy, single-screen interface, for fast decision-making in a busy practice. The original OHTS calculator is still the best. Now with easy entry for both eyes, reducing the workload on your brain.
It uses the same calculation data as some other online calculators and electronic single-purpose calculators. However, being on your iPhone means you always have it available at all times.
It also has the benefit of having full support for all three major perimeters: Humphrey, Medmont and Octopus. No manual conversion is required.
And, being an iPhone application, its really simple to use, everything happens on just one screen, enter your five parameters (Age, IOP, C/D ratio, CCT and PSD/PD/LV) and the glaucoma risk is displayed.
Now includes an Apple Watch app that lets you calculate your patients' glaucoma risk without leaving your wrist!
The Apple Watch app works independently of the iPhone app, you don't even need your iPhone with you for the app to work. A Complication is included to give you quick access to the last calculated risk value, and to allow one-touch access to the app if you are using it regularly.
Please remember that this application is purely an aid, and is not a replacement for clinical judgement.
Latest updates
2.0
This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
This version has been completely rewritten to work with iOS 17. Both the iPhone app and Apple Watch app have been fully updated.
