# Electrical Calculator Pro vs Nellin controllers

The clearest difference is in-app purchases: Nellin controllers at none against Electrical Calculator Pro's 1. Nellin controllers also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Electrical Calculator Pro sells 1 one-off in-app purchase. Nellin controllers asks for nothing beyond the download.

## The numbers

| Metric | Electrical Calculator Pro | Nellin controllers |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | — | Daily |
| Size | 8 MB | 38 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Do Tri](https://appshunter.io/developer/846531282) | [Aleksandr Liashov](https://appshunter.io/developer/1881074623) |

## What reviewers say

### Electrical Calculator Pro

[App page](https://appshunter.io/ios/app/electrical-calculator-pro/id6759329271)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $9.99 | one-time |


### Nellin controllers

[App page](https://appshunter.io/ios/app/nellin-controllers/id6801412782)

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

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Calculator Pro free?

Electrical Calculator Pro is free to download, with in-app purchases available.

### Is Nellin controllers free?

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

### Do Electrical Calculator Pro or Nellin controllers have ads?

Electrical Calculator Pro shows ads; Nellin controllers does not.

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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.*