# Purchasing Desk 4 vs Invntry Stock Control

The clearest difference is update cadence: Invntry Stock Control at every 3 months against Purchasing Desk 4's every 47 months. Purchasing Desk 4's advantage is device support (4 vs 2) and iOS requirement (12.0 vs 15.1). On price, ads 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.

Purchasing Desk 4 ships an update every 47 months, Invntry Stock Control every 3 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Purchasing Desk 4 | Invntry Stock Control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 3 months** |
| Size | 34 MB | 27 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Broom Street Software, Inc.](https://appshunter.io/developer/533876716) | [SenServe Limited](https://appshunter.io/developer/967969232) |

## What reviewers say

### Purchasing Desk 4

[App page](https://appshunter.io/ios/app/purchasing-desk-4/id989311413)

**In-app purchases:** none


### Invntry Stock Control

[App page](https://appshunter.io/ios/app/invntry-stock-control/id6504001510)

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

**In-app purchases:** none


## Frequently asked questions

### Is Purchasing Desk 4 free?

Purchasing Desk 4 is free to download, with no in-app purchases.

### Is Invntry Stock Control free?

Invntry Stock Control is free to download, with no in-app purchases.

### Do Purchasing Desk 4 or Invntry Stock Control have ads?

Neither Purchasing Desk 4 nor Invntry Stock Control shows ads.

### Which is updated more often, Purchasing Desk 4 or Invntry Stock Control?

Purchasing Desk 4 ships an update every 47 months, and Invntry Stock Control every 3 months. Most recently, Purchasing Desk 4 was updated on October 26, 2026 and Invntry Stock Control on October 27, 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.*