# Hydraulic Power Unit vs Vacuums

The clearest difference is update cadence: Vacuums at every 6 months against Hydraulic Power Unit's every 37 months. Hydraulic Power Unit's advantage is iOS requirement (6.0 vs 17.6). 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.

Hydraulic Power Unit ships an update every 37 months, Vacuums every 6 months. The most recent releases landed on December 9, 2025 and July 8, 2026 respectively.

## The numbers

| Metric | Hydraulic Power Unit | Vacuums |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/vacuums/id1241468166/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 6 months** |
| Monetization | — | Free |
| Size | 4 MB | 5 MB |
| Requires iOS | **6.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zanthic Automation Inc.](https://appshunter.io/developer/574695320) | [Amnaj Sriwilai](https://appshunter.io/developer/1241468165) |

## What reviewers say

### Hydraulic Power Unit

[App page](https://appshunter.io/ios/app/hydraulic-power-unit/id608111471)

**Features:** macOS Compatibility

**In-app purchases:** none


### Vacuums

[App page](https://appshunter.io/ios/app/vacuums/id1241468166)

This app assists automation engineers and systems designers in calculating parameters for vacuum handling systems. It helps determine workpiece requirements, holding force, and optimal dimensions for vacuum cups and hoses.

**Highlights:** Workpiece calculation, Holding force calculation, Vacuum cup diameter calculation, Vacuum hose diameter calculation, Evacuation time estimation, Pump suction capacity calculation, Vacuum unit converter

**In-app purchases:** none


## Frequently asked questions

### Is Hydraulic Power Unit free?

Hydraulic Power Unit is free to download, with no in-app purchases.

### Is Vacuums free?

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

### Do Hydraulic Power Unit or Vacuums have ads?

Neither Hydraulic Power Unit nor Vacuums shows ads.

### Which is updated more often, Hydraulic Power Unit or Vacuums?

Hydraulic Power Unit ships an update every 37 months, and Vacuums every 6 months. Most recently, Hydraulic Power Unit was updated on December 9, 2025 and Vacuums on July 8, 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.*