Optics Clinical Calculator Downloads & RevenueOptics Clinical Calculator · App Store
Optics Clinical Calculator is #136 in Medical Paid in Italy and charting in 1 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperEvan Schoenberg
CategoryMedical
Price5.99 EUR
Released
Rating★ 5.0 (1)
Version5.3
Age rating12+
First seen by us
27 Sep 2026
27 Sep 2026Installs (est.)1k+ worldwide
Optics Clinical Calculator update history & changes
Last change · 3 events since 8 Jan 2009Full timeline ↓Full timeline · 2 events in the last 12 months
- 🆕Optics Clinical Calculator first spotted by AppInsider#41 in Top Paid · Medical · Italy
- 🆕Optics Clinical Calculator 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 ★
1 ratings
Measured
Best rank now
#136
Medical PaidMeasured
Optics Clinical Calculator on the App Store
App details
App ID
301059660
Publisher
Evan Schoenberg, M.D.
On the store since
Jan 2009
17 years on the store
Minimum OS
iOS 12.0+
iPhone 5s and later
Devices
iPhone · iPad
Content rating
12+
1 content note below
Languages
3
EN IT PT
Size
3 MB
Content notesInfrequent/Mild Medical/Treatment Information
Optics Clinical Calculator 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 |
|---|---|---|
| Italy | MedicalPaid | #136 |
Apps near Optics Clinical Calculator on the chart
Medical Paid, around #136.
Ratings
App Store, worldwide.
Rating
5.0 ★
1 ratings
Measured
Ratings
1
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 Optics Clinical Calculator
Optics Clinical Calculator is a vital tool for every general or refractive ophthalmologist, ophthalmology resident, optometrist, and optician. With Optics, you’ll have streamlined, intuitive access to calculators used daily in prescribing lenses and understanding optics.
** Featured as a Top Eye App in Review of Optometry, March, 2012! **
Results are provided instantaneously, with no additional steps required, and explanations of the formulas and their application are just a tap away, perfect for learning and review.
Don't waste your money on a program which just does 1/10 of what Optics Clinical Calculator provides you! Optics has no equal on the App Store.
CALCULATORS
• Base Curve
• Convergence
• Diopter to/from Radius (mm) Conversion
• Diopters from Focal Distance
• Intermediate and Near Vision Prescriptions from Standard Refraction
• Lens Power in Oblique Meridians
• Oblique Crossed Cylinders
• Ocular Curve
• Optical Center Decentration
• Slab-Off calculator (Induced Prism)
• Vertex Distance
FEATURES
• Beautiful, fast interface evolved especially for Optics from the acclaimed MediMath Medical Calculator, including unique wheel-based diopter entry
• Detailed explanations, including formulas and clinical notes, for each calculator (just tap the ‘i’) - perfect for review, cross-checking, and learning
• Optics always returns to where you left off
• Free upgrades for life, including requested additional calculators
CONTACT
Please let me know if there are other clinically relevant calculators you would like to see added in future free upgrades to Optics! I can’t respond to comments here in the App Store, so the best way to send a request is via email: [email protected]. Please also contact me directly if you have any questions or concerns.
** Featured as a Top Eye App in Review of Optometry, March, 2012! **
Results are provided instantaneously, with no additional steps required, and explanations of the formulas and their application are just a tap away, perfect for learning and review.
Don't waste your money on a program which just does 1/10 of what Optics Clinical Calculator provides you! Optics has no equal on the App Store.
CALCULATORS
• Base Curve
• Convergence
• Diopter to/from Radius (mm) Conversion
• Diopters from Focal Distance
• Intermediate and Near Vision Prescriptions from Standard Refraction
• Lens Power in Oblique Meridians
• Oblique Crossed Cylinders
• Ocular Curve
• Optical Center Decentration
• Slab-Off calculator (Induced Prism)
• Vertex Distance
FEATURES
• Beautiful, fast interface evolved especially for Optics from the acclaimed MediMath Medical Calculator, including unique wheel-based diopter entry
• Detailed explanations, including formulas and clinical notes, for each calculator (just tap the ‘i’) - perfect for review, cross-checking, and learning
• Optics always returns to where you left off
• Free upgrades for life, including requested additional calculators
CONTACT
Please let me know if there are other clinically relevant calculators you would like to see added in future free upgrades to Optics! I can’t respond to comments here in the App Store, so the best way to send a request is via email: [email protected]. Please also contact me directly if you have any questions or concerns.
Latest updates
5.3
General interface updates for iOS 15.
