# 4D Scale vs Skustack

The clearest difference is update cadence: 4D Scale at every 2 months against Skustack's every 5 months. 4D Scale also leads on iOS requirement (13.0 vs 15.1). On price, ads, 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.

4D Scale ships an update every 2 months, Skustack every 5 months. The most recent releases landed on September 20, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | 4D Scale | Skustack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.5 (2 ratings)](https://appshunter.io/ios/app/skustack/id6499223562/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | — | Free |
| Size | 12 MB | 54 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SELLER HARDWARE LLC](https://appshunter.io/developer/1792433678) | [The Descartes Systems Group](https://appshunter.io/developer/1008328212) |

## What reviewers say

### 4D Scale

[App page](https://appshunter.io/ios/app/4d-scale/id1588785013)

**Features:** macOS Compatibility

**In-app purchases:** none


### Skustack

[App page](https://appshunter.io/ios/app/skustack/id6499223562)

This platform helps businesses organize their warehouse operations and optimize workflows for omnichannel selling. It assists in tracking inventory, simplifying operations, and driving business growth.

**Highlights:** Warehouse organization, Inventory tracking, Omnichannel selling optimization, Workflow simplification, Business growth driver

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

**In-app purchases:** none


## Frequently asked questions

### Is 4D Scale free?

4D Scale is free to download, with no in-app purchases.

### Is Skustack free?

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

### Do 4D Scale or Skustack have ads?

Neither 4D Scale nor Skustack shows ads.

### Which is updated more often, 4D Scale or Skustack?

4D Scale ships an update every 2 months, and Skustack every 5 months. Most recently, 4D Scale was updated on September 20, 2026 and Skustack on August 18, 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.*