# Indo Center vs POL Guide

The clearest difference is update cadence: Indo Center at every 6 months against POL Guide's every 16 months. On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Indo Center ships an update every 6 months, POL Guide every 16 months. Both last shipped on October 11, 2026.

## The numbers

| Metric | Indo Center | POL Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/pol-guide/id927969758/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 16 months |
| Monetization | Free | Free |
| Size | 35 MB | 213 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Indo Optical S.L.](https://appshunter.io/developer/1255492159) | [POL DOO BEOGRAD](https://appshunter.io/developer/1495537241) |

## What reviewers say

### Indo Center

[App page](https://appshunter.io/ios/app/indo-center/id657080886)

This medical application uses advanced hardware and software to automatically measure all necessary parameters for fitting ophthalmic lenses to spectacle frames. It provides precise measurements for interpupillary distance, mounting heights, lens diameters, and more, ensuring accurate lens adaptation.

**Highlights:** Pupillary centering system, Automatic parameter measurement, Compatible with all lens brands, Measures interpupillary distance, Calculates mounting heights, Determines lens diameters, Provides vertex distance

**Features:** macOS Compatibility

**In-app purchases:** none


### POL Guide

[App page](https://appshunter.io/ios/app/pol-guide/id927969758)

This app helps opticians visually demonstrate the distinctions between various lens materials, index types, and coatings to their clients. It serves as a professional tool for optical practices to enhance customer understanding and sales.

**Highlights:** Demonstrate lens material differences, Explain index types, Showcase lens coatings, Professional tool for opticians

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Indo Center free?

Indo Center is free to download, with no in-app purchases.

### Is POL Guide free?

POL Guide is free to download, with no in-app purchases.

### Do Indo Center or POL Guide have ads?

Neither Indo Center nor POL Guide shows ads.

### Which is updated more often, Indo Center or POL Guide?

Indo Center ships an update every 6 months, and POL Guide every 16 months. Most recently, Indo Center was updated on October 11, 2026 and POL Guide on October 11, 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.*