# Optical Calculator for ECPs vs Smart Eye Camera (SEC)

The clearest difference is in-app purchases: Smart Eye Camera (SEC) at none against Optical Calculator for ECPs's 2. Smart Eye Camera (SEC) also leads on iOS requirement (16.6 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Optical Calculator for ECPs sells 2 in-app purchases, starting at $4.99 per month. Smart Eye Camera (SEC) asks for nothing beyond the download.

Optical Calculator for ECPs ships an update every 6 weeks, Smart Eye Camera (SEC) every 3 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Optical Calculator for ECPs | Smart Eye Camera (SEC) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (27 ratings)](https://appshunter.io/ios/app/optical-calculator-for-ecps/id1146297178/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Freemium | — |
| Size | 11 MB | 44 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lens Shapers](https://appshunter.io/developer/1279463389) | [OUI inc.](https://appshunter.io/developer/1536247158) |

## What reviewers say

### Optical Calculator for ECPs

[App page](https://appshunter.io/ios/app/optical-calculator-for-ecps/id1146297178)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $49.99 | per year |


### Smart Eye Camera (SEC)

[App page](https://appshunter.io/ios/app/smart-eye-camera-sec/id1536247156)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Optical Calculator for ECPs free?

Optical Calculator for ECPs is free to download, with in-app purchases available.

### Is Smart Eye Camera (SEC) free?

Smart Eye Camera (SEC) is free to download, with no in-app purchases.

### Do Optical Calculator for ECPs or Smart Eye Camera (SEC) have ads?

Neither Optical Calculator for ECPs nor Smart Eye Camera (SEC) shows ads.

### Which is updated more often, Optical Calculator for ECPs or Smart Eye Camera (SEC)?

Optical Calculator for ECPs ships an update every 6 weeks, and Smart Eye Camera (SEC) every 3 weeks. Most recently, Optical Calculator for ECPs was updated on October 24, 2026 and Smart Eye Camera (SEC) on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*