# Hydraulic vs MultiProtector

The clearest difference is in-app purchases: MultiProtector at none against Hydraulic's 2. MultiProtector also leads on iOS requirement (12.2 vs 15.1). Hydraulic's advantage is update cadence (every 6 weeks vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Hydraulic sells 2 one-off in-app purchases. MultiProtector asks for nothing beyond the download.

Hydraulic ships an update every 6 weeks, MultiProtector every 6 months. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Hydraulic | MultiProtector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (17 ratings)](https://appshunter.io/ios/app/hydraulic-calculator/id612615039/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 151 MB |
| Requires iOS | 15.1 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zanthic Automation Inc.](https://appshunter.io/developer/574695320) | [NETZSCH Pumpen & Systeme GmbH](https://appshunter.io/developer/1568447514) |

## What reviewers say

### Hydraulic

[App page](https://appshunter.io/ios/app/hydraulic-calculator/id612615039)

Perform essential hydraulic calculations for cylinders, pumps, and fluid lines. Solve for forces, speeds, torque, power, and pressure drop. Supports metric and imperial units, with advanced features unlocked via in-app purchase.

**Highlights:** Cylinder force and speed calculations, Pump displacement, flow, and pressure calculations, Hydraulic line fluid velocity and pressure drop, Orifice flow and pressure calculations, Speed, torque, and power calculations, Metric and imperial unit support, Copy results to clipboard

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $7.99 | one-time |
| Pro Version | $7.99 | one-time |


### MultiProtector

[App page](https://appshunter.io/ios/app/multiprotector/id1568447512)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hydraulic free?

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

### Is MultiProtector free?

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

### Do Hydraulic or MultiProtector have ads?

Neither Hydraulic nor MultiProtector shows ads.

### Which is updated more often, Hydraulic or MultiProtector?

Hydraulic ships an update every 6 weeks, and MultiProtector every 6 months. Most recently, Hydraulic was updated on October 20, 2026 and MultiProtector on October 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.*