# AmpSet Blue vs Hydraulic Calculator Engineer

The clearest difference is rating: AmpSet Blue at 5.0 against Hydraulic Calculator Engineer's 4.3. AmpSet Blue also leads on update cadence (every 2 months vs every 22 months) and iOS requirement (8.0 vs 15.0). Hydraulic Calculator Engineer's advantage is ratings volume (9 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

AmpSet Blue holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Hydraulic Calculator Engineer has 9 ratings behind it against 1, so its average is the more settled of the two.

AmpSet Blue ships an update every 2 months, Hydraulic Calculator Engineer every 22 months. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AmpSet Blue | Hydraulic Calculator Engineer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ampset-blue/id829199050/reviews)** | [4.3 (9 ratings)](https://appshunter.io/ios/app/hydraulic-calculator-engineer/id1664790770/reviews) |
| Number of ratings | 1 | **9** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 22 months |
| Monetization | Free | Free |
| Size | 16 MB | 21 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sun Hydraulics Corporation](https://appshunter.io/developer/958574432) | [Arsosa Network Inc.](https://appshunter.io/developer/1209042440) |

## What reviewers say

### AmpSet Blue

[App page](https://appshunter.io/ios/app/ampset-blue/id829199050)

Configure Sun's Bluetooth Embedded Amplifiers wirelessly using your iOS device. This app allows for on-site tuning of electro-proportional cartridges with an intuitive interface and smart prompts. Save configuration files or email them for backup and reuse.

**Highlights:** Wireless Bluetooth configuration, Configure electro-proportional cartridges, On-site tuning, Save and email configuration files, Intuitive interface with smart prompts, Supports iPad, iPhone, and iPod

**In-app purchases:** none


### Hydraulic Calculator Engineer

[App page](https://appshunter.io/ios/app/hydraulic-calculator-engineer/id1664790770)

This app offers a suite of hydraulic calculations for technicians and engineers. It simplifies complex hydraulics by automatically computing results based on user-entered values, eliminating the need for manual formula application.

**Highlights:** Cylinder Calculation, Power Calculation, Pressure Difference, Piston Diameter, Speed Calculation, Lifting Time, Volume Flow

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

**In-app purchases:** none


## Frequently asked questions

### Is AmpSet Blue free?

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

### Is Hydraulic Calculator Engineer free?

Hydraulic Calculator Engineer is free to download, with no in-app purchases.

### Which has better reviews, AmpSet Blue or Hydraulic Calculator Engineer?

AmpSet Blue is rated higher. AmpSet Blue averages 5.0 out of 5 from 1 ratings, while Hydraulic Calculator Engineer averages 4.3 from 9 ratings.

### Do AmpSet Blue or Hydraulic Calculator Engineer have ads?

Neither AmpSet Blue nor Hydraulic Calculator Engineer shows ads.

### Which is updated more often, AmpSet Blue or Hydraulic Calculator Engineer?

AmpSet Blue ships an update every 2 months, and Hydraulic Calculator Engineer every 22 months. Most recently, AmpSet Blue was updated on October 9, 2026 and Hydraulic Calculator Engineer 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.*