# OPTOVERA vs GBFC

The clearest difference is device support: OPTOVERA at 2 against GBFC's —. GBFC's advantage is iOS requirement (13.4 vs 15.6). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | OPTOVERA | GBFC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/optovera/id1294893103/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Fortnightly | — |
| Monetization | Free | — |
| Size | 40 MB | 48 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [SOBER-EYE INC.](https://appshunter.io/developer/1190138680) | [Grace Bible Fellowship Church of Melissa](https://appshunter.io/developer/1713272135) |

## What reviewers say

### OPTOVERA

[App page](https://appshunter.io/ios/app/optovera/id1294893103)

This app uses your device's camera to record your eye and analyze pupil response to light. It helps you learn about the Pupillary Light Reflex by measuring pupil size changes. It is not intended for medical diagnosis.

**Highlights:** Video capture of eye, Pupil detection and size measurement, Pupil Response to Light analysis, Learning about Pupillary Light Reflex, No medical diagnosis provided

**In-app purchases:** none


### GBFC

[App page](https://appshunter.io/ios/app/gbfc-melissa/id6470252005)

**In-app purchases:** none


## Frequently asked questions

### Is OPTOVERA free?

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

### Is GBFC free?

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

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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.*