# HBKNV vs Operant Vision

The clearest difference is in-app purchases: HBKNV at none against Operant Vision's 3. HBKNV also leads on iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Operant Vision sells 3 one-off in-app purchases. HBKNV asks for nothing beyond the download.

## The numbers

| Metric | HBKNV | Operant Vision |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 39 MB | 27 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Shanhai Electronics Technology Co., Ltd.](https://appshunter.io/developer/1664079119) | [Alien 3D Technology, LLC](https://appshunter.io/developer/6781891549) |

## What reviewers say

### HBKNV

[App page](https://appshunter.io/ios/app/hbknv/id1664079117)

**In-app purchases:** none


### Operant Vision

[App page](https://appshunter.io/ios/app/operant-vision/id6781891547)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25 Generations | $6.00 | one-time |
| 50 Generations | $9.00 | one-time |
| 100 Generations | $12.00 | one-time |


## Frequently asked questions

### Is HBKNV free?

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

### Is Operant Vision free?

Operant Vision is free to download, with in-app purchases available.

### Do HBKNV or Operant Vision have ads?

Neither HBKNV nor Operant Vision shows ads.

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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.*