# G.Smart 4.0 vs Biometry Scanner (IOL Power)

The clearest difference is ads: G.Smart 4.0 at none against Biometry Scanner (IOL Power)'s shown. G.Smart 4.0 also leads on iOS requirement (14.0 vs 16.4). Biometry Scanner (IOL Power)'s advantage is update cadence (every 9 months vs every 26 months). On price, in-app purchases and device support there is nothing between them.

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

G.Smart 4.0 ships an update every 26 months, Biometry Scanner (IOL Power) every 9 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | G.Smart 4.0 | Biometry Scanner (IOL Power) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/biometry-scanner-iol-power/id6758864494/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 26 months | **Every 9 months** |
| Monetization | — | Free |
| Size | 206 MB | 64 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Garen Automacao SA](https://appshunter.io/developer/1439140467) | [OcuMetric Innovations LTD](https://appshunter.io/developer/1875370764) |

## What reviewers say

### G.Smart 4.0

[App page](https://appshunter.io/ios/app/gsmart-40/id1626288093)

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

**In-app purchases:** none


### Biometry Scanner (IOL Power)

[App page](https://appshunter.io/ios/app/biometry-scanner-iol-power/id6758864494)

This utility app automatically extracts biometric data from documents for use in an IOL Calculator. It streamlines data entry by scanning and uploading documents, requiring user verification for accuracy.

**Highlights:** Automatic biometric data extraction, Document scanning and upload, Streamlined data entry, IOL Calculator integration, User verification required

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

**In-app purchases:** none


## Frequently asked questions

### Is G.Smart 4.0 free?

G.Smart 4.0 is free to download, with no in-app purchases.

### Is Biometry Scanner (IOL Power) free?

Biometry Scanner (IOL Power) is free to download, with no in-app purchases.

### Do G.Smart 4.0 or Biometry Scanner (IOL Power) have ads?

Biometry Scanner (IOL Power) shows ads; G.Smart 4.0 does not.

### Which is updated more often, G.Smart 4.0 or Biometry Scanner (IOL Power)?

G.Smart 4.0 ships an update every 26 months, and Biometry Scanner (IOL Power) every 9 months. Most recently, G.Smart 4.0 was updated on November 3, 2026 and Biometry Scanner (IOL Power) on November 5, 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.*