# Conductivity Basic for EC115B vs Hydraulic Calculator Engineer

The clearest difference is iOS requirement: Conductivity Basic for EC115B at 9.0 against Hydraulic Calculator Engineer's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Conductivity Basic for EC115B ships an update every 15 months, Hydraulic Calculator Engineer every 22 months. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Conductivity Basic for EC115B | 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 15 months** | Every 22 months |
| Monetization | — | Free |
| Size | 20 MB | 21 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jenco Instruments, Inc.](https://appshunter.io/developer/1275832649) | [Arsosa Network Inc.](https://appshunter.io/developer/1209042440) |

## What reviewers say

### Conductivity Basic for EC115B

[App page](https://appshunter.io/ios/app/conductivity-basic-for-ec115b/id1315394053)

**Features:** macOS Compatibility

**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 Conductivity Basic for EC115B free?

Conductivity Basic for EC115B 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 Conductivity Basic for EC115B or Hydraulic Calculator Engineer have ads?

Neither Conductivity Basic for EC115B nor Hydraulic Calculator Engineer shows ads.

### Which is updated more often, Conductivity Basic for EC115B or Hydraulic Calculator Engineer?

Conductivity Basic for EC115B ships an update every 15 months, and Hydraulic Calculator Engineer every 22 months. Most recently, Conductivity Basic for EC115B was updated on October 7, 2026 and Hydraulic Calculator Engineer on September 28, 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.*