Comparison

Optical Calculator for ECPs vs Ncontroller

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

Head to head
About

Optical Calculator for ECPs

This medical app provides a suite of specialized optical calculation tools for eye care professionals. It offers features like lens thickness, vertex compensation, and prism compounding, with a focus on accuracy and ease of use. A subscription unlocks all current and future calculators.

Highlights
  • Stock Lens Cutout
  • Lens Thickness Calculation
  • Vertex Compensation
  • Rx Transpose
  • Prism Compounding
  • Contact Lens Rx
  • Tilt & Wrap Compensation
Features
Read full description

The best Optical Calculator on the App Store. • Stock Lens Cutout • Lens Thickness • Vertex Compensation • Rx Transpose • Intermediate Rx • Prism Compounding • Contact Lens Rx • Induced Prism • Tilt & Wrap Compensation • Crossed Cylinders • Resolving Prism • Spectacle Magnification • Vertical Imbalance Compensation • Power in Oblique Meridians If you want another calculator, let us know and we will add it. The app is easy to use and to the point. ______________________________________________ About Subscription: • You may subscribe to our service for a free trial. This subscription auto-renews yearly at the specified price. • This subscription provides you full access to all our current and future optical calculators. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • The account will be charged for renewal within 24-hours prior to the end of the current period. • Payment will be charged to your iTunes Account at confirmation of purchase. • You may manage the subscription and auto-renewal may be turned off by going to the user's Account Settings after purchase. • Any unused portion of a free trial period will be forfeited when you purchase the subscription. • Privacy policy: http://www.lens-shapers.com/privacy • Terms of use: http://www.lens-shapers.com/terms

About

Ncontroller

Features
Read full description

Nidek Remote Controller is a free app for controlling products manufactured by Nidek, a manufacturer of ophthalmic medical equipment, using your tablet.

Screenshots

Optical Calculator for ECPs4 screens

Verdict

The call

The clearest difference is in-app purchases: Ncontroller at none against Optical Calculator for ECPs's 2. Ncontroller also leads on iOS requirement (12.0 vs 18.0). Optical Calculator for ECPs's advantage is update cadence (every 6 weeks vs every 36 months). On price, ads and device support 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. Optical Calculator for ECPs sells 2 in-app purchases, starting at $4.99 per month. Ncontroller asks for nothing beyond the download.

UpkeepUpdate frequency

Optical Calculator for ECPs ships an update every 6 weeks, Ncontroller every 36 months. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 7 level
Optical Calculator for ECPs versus Ncontroller: the parameters behind the verdict, then further details
ParameterOptical Calculator for ECPsNcontroller
PriceFreeFree
Rating4.5 (27 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings27 — better—
Update frequencyEvery 6 weeks — betterEvery 36 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad — betteriPad
Requires iOS18.012.0 — better
Further details — not scored
Size11 MB12 MB
Age rating4+17+
DeveloperLens ShapersNIDEK

In-app purchases

2 purchases

Optical Calculator for ECPs

Subscriptions2
  • Monthly3 Days trial$4.991 Month
  • Yearly3 Days trial$49.991 Year
None

Ncontroller

No in-app purchases

Questions

Is Optical Calculator for ECPs free?
Optical Calculator for ECPs is free to download, with in-app purchases available.
Is Ncontroller free?
Ncontroller is free to download, with no in-app purchases.
Do Optical Calculator for ECPs or Ncontroller have ads?
Neither Optical Calculator for ECPs nor Ncontroller shows ads.
Which is updated more often, Optical Calculator for ECPs or Ncontroller?
Optical Calculator for ECPs ships an update every 6 weeks, and Ncontroller every 36 months. Most recently, Optical Calculator for ECPs was updated on September 22, 2026 and Ncontroller on September 24, 2026.

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