# Hydraulic vs MService

The clearest difference is review sentiment: MService at 100% against Hydraulic's 50%. MService also leads on in-app purchases (none vs 2) and iOS requirement (11.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

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

Hydraulic ships an update every 6 weeks, MService every 3 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Hydraulic | MService |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 24 MB | 44 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zanthic Automation Inc.](https://appshunter.io/developer/574695320) | [Selfservit Solutions Pvt.Ltd](https://appshunter.io/developer/945665027) |

## 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 |


### MService

[App page](https://appshunter.io/ios/app/mservice/id945991789)

This cloud-based platform streamlines field service operations for organizations. It automates service processes and provides real-time visibility into field activities through mobile connectivity.

**Highlights:** Cloud-based platform, Field service automation, Mobile connectivity, Real-time tracking, Detailed operational view

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hydraulic free?

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

### Is MService free?

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

### Do Hydraulic or MService have ads?

Neither Hydraulic nor MService shows ads.

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

Hydraulic ships an update every 6 weeks, and MService every 3 months. Most recently, Hydraulic was updated on October 20, 2026 and MService on October 24, 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.*