# Quantify 4 vs Voice Officer

The clearest difference is in-app purchases: Voice Officer at none against Quantify 4's 1. Voice Officer also leads on iOS requirement (13.0 vs 15.0). Quantify 4's advantage is device support. On price there is nothing between them.

Both are free to download. Quantify 4 sells 1 one-off in-app purchase. Voice Officer asks for nothing beyond the download.

## The numbers

| Metric | Quantify 4 | Voice Officer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 21 months | — |
| Size | 89 MB | 19 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [KENJI KANEMOTO](https://appshunter.io/developer/402720982) | [HIDEMASA SHIMADA](https://appshunter.io/developer/1862314452) |

## What reviewers say

### Quantify 4

[App page](https://appshunter.io/ios/app/quantify-4/id6448651638)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |


### Voice Officer

[App page](https://appshunter.io/ios/app/voice-officer/id6756721858)

**In-app purchases:** none


## Frequently asked questions

### Is Quantify 4 free?

Quantify 4 is free to download, with in-app purchases available.

### Is Voice Officer free?

Voice Officer 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.*