# Progressive Identifier for ECP vs KMK Optometry Coaching

The clearest difference is rating: KMK Optometry Coaching at 4.9 against Progressive Identifier for ECP's 4.4. KMK Optometry Coaching also leads on in-app purchases (none vs 2) and update cadence (weekly vs every 14 months). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. Progressive Identifier for ECP sells 2 in-app purchases, starting at $4.99 per month. KMK Optometry Coaching asks for nothing beyond the download.

KMK Optometry Coaching holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 36 and 33 respectively.

Progressive Identifier for ECP ships an update every 14 months, KMK Optometry Coaching weekly. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Progressive Identifier for ECP | KMK Optometry Coaching |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (36 ratings)](https://appshunter.io/ios/app/progressive-identifier-for-ecp/id1365601702/reviews) | **[4.9 (33 ratings)](https://appshunter.io/ios/app/kmk-optometry-coaching/id1645627925/reviews)** |
| Number of ratings | **36** | 33 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 14 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 20 MB | 124 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Lens Shapers](https://appshunter.io/developer/1279463389) | [KMK Optometry](https://appshunter.io/developer/1645627929) |

## What reviewers say

### Progressive Identifier for ECP

[App page](https://appshunter.io/ios/app/progressive-identifier-for-ecp/id1365601702)

This app helps identify progressive lenses by their engravings or names. It provides detailed information on over 1200 lenses, including availability, materials, and fitting heights. Search visually or by text for engravings and lens details.

**Highlights:** Identify lenses by engraving or name, Detailed lens information (materials, fitting height), Search engravings visually or by text, Over 1200 lenses and engravings, Data for USA, Canada, Germany, UK, Includes digital, therapeutic, and anti-fatigue lenses

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

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


### KMK Optometry Coaching

[App page](https://appshunter.io/ios/app/kmk-optometry-coaching/id1645627925)

This platform connects optometry students preparing for board exam retakes with a supportive community. It offers live feeds, collaborative spaces, and expert coaching sessions to enhance learning and motivation.

**Highlights:** Live feed with quiz questions and learning tips, Collaborative learning spaces, Direct chat with colleagues and coaches, Live streaming expert coaching events, Community support for board exam retakes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Progressive Identifier for ECP free?

Progressive Identifier for ECP is free to download, with in-app purchases available.

### Is KMK Optometry Coaching free?

KMK Optometry Coaching is free to download, with no in-app purchases.

### Which has better reviews, Progressive Identifier for ECP or KMK Optometry Coaching?

KMK Optometry Coaching is rated higher. Progressive Identifier for ECP averages 4.4 out of 5 from 36 ratings, while KMK Optometry Coaching averages 4.9 from 33 ratings.

### Do Progressive Identifier for ECP or KMK Optometry Coaching have ads?

Neither Progressive Identifier for ECP nor KMK Optometry Coaching shows ads.

### Which is updated more often, Progressive Identifier for ECP or KMK Optometry Coaching?

Progressive Identifier for ECP ships an update every 14 months, and KMK Optometry Coaching weekly. Most recently, Progressive Identifier for ECP was updated on October 17, 2026 and KMK Optometry Coaching on October 7, 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.*