# ELECTROtools vs KOSTAL InverterApp

The clearest difference is review sentiment: ELECTROtools at 100% against KOSTAL InverterApp's 50%. 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ELECTROtools | KOSTAL InverterApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/electrotools/id520168334/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 75 MB | 78 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FEGIME Deutschland Marktgemeinschaft im Elektrogrosshandel GmbH & Co. KG](https://appshunter.io/developer/948239599) | [KOSTAL Industrie Elektrik GmbH](https://appshunter.io/developer/1436479665) |

## What reviewers say

### ELECTROtools

[App page](https://appshunter.io/ios/app/electrotools/id520168334)

This app provides electricians and engineers with essential tabulations, formulas, and graphics for various electrical and electronic tasks. It includes tools for circuit calculations, component identification, and data lookup, making it a handy reference for fieldwork and office use.

**Highlights:** Electrical tabulations and graphics, Formulae calculator, Component identification, Color code references, Cable dimensioning, Own document uploads

**Features:** macOS Compatibility

**In-app purchases:** none


### KOSTAL InverterApp

[App page](https://appshunter.io/ios/app/kostal-inverterapp/id1436479666)

Access and manage KOSTAL drive controllers with Bluetooth via your smartphone or tablet. Perform diagnostics, commissioning, and parameter settings remotely. Data records are compatible with PC software for seamless workflow.

**Highlights:** Bluetooth connectivity, Wizard-guided commissioning, Save and copy device settings, Send data records via email, Parameter settings in plain text, Control drive controller, Access process variables, Error analysis and history

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ELECTROtools free?

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

### Is KOSTAL InverterApp free?

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

### Do ELECTROtools or KOSTAL InverterApp have ads?

Neither ELECTROtools nor KOSTAL InverterApp shows ads.

### Which is updated more often, ELECTROtools or KOSTAL InverterApp?

ELECTROtools ships an update every 2 months, and KOSTAL InverterApp every 2 months. Most recently, ELECTROtools was updated on October 14, 2026 and KOSTAL InverterApp on October 11, 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.*