# PortPro Owner Operator vs Scent

PortPro Owner Operator and Scent are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | PortPro Owner Operator | Scent |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 267 MB | 183 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Axle Technologies](https://appshunter.io/developer/1274206825) | [萍萍 刘](https://appshunter.io/developer/1626043006) |

## What reviewers say

### PortPro Owner Operator

[App page](https://appshunter.io/ios/app/portpro-owner-operator/id6737353020)

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

**In-app purchases:** none


### Scent

[App page](https://appshunter.io/ios/app/scent-lab/id6788707233)

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

**In-app purchases:** none


## Frequently asked questions

### Is PortPro Owner Operator free?

PortPro Owner Operator is free to download, with no in-app purchases.

### Is Scent free?

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

### Do PortPro Owner Operator or Scent have ads?

Neither PortPro Owner Operator nor Scent 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.*