# EL 7 vs Hydraulic Calculator Engineer

The clearest difference is update cadence: EL 7 at every 4 months against Hydraulic Calculator Engineer's every 22 months. 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.

EL 7 ships an update every 4 months, Hydraulic Calculator Engineer every 22 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | EL 7 | Hydraulic Calculator Engineer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (9 ratings)](https://appshunter.io/ios/app/hydraulic-calculator-engineer/id1664790770/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 22 months |
| Monetization | — | Free |
| Size | 53 MB | 21 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ARGO-HYTOS](https://appshunter.io/developer/1435513381) | [Arsosa Network Inc.](https://appshunter.io/developer/1209042440) |

## What reviewers say

### EL 7

[App page](https://appshunter.io/ios/app/el-7/id1555428665)

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

**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 EL 7 free?

EL 7 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.

### Do EL 7 or Hydraulic Calculator Engineer have ads?

Neither EL 7 nor Hydraulic Calculator Engineer shows ads.

### Which is updated more often, EL 7 or Hydraulic Calculator Engineer?

EL 7 ships an update every 4 months, and Hydraulic Calculator Engineer every 22 months. Most recently, EL 7 was updated on November 3, 2026 and Hydraulic Calculator Engineer on November 3, 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.*