# Coil Toolkit Pro vs Voltage Calculator

The clearest difference is iOS requirement: Coil Toolkit Pro at 13.0 against Voltage Calculator's 15.0. 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.

## The numbers

| Metric | Coil Toolkit Pro | Voltage Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 29 MB | 72 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mamta Kevadiya](https://appshunter.io/developer/6776068885) | [ESDEV Teknoloji](https://appshunter.io/developer/1693053468) |

## What reviewers say

### Coil Toolkit Pro

[App page](https://appshunter.io/ios/app/coil-toolkit-pro/id6778254078)

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

**In-app purchases:** none


### Voltage Calculator

[App page](https://appshunter.io/ios/app/voltage-calculator/id6790529321)

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

**In-app purchases:** none


## Frequently asked questions

### Is Coil Toolkit Pro free?

Coil Toolkit Pro is free to download, with no in-app purchases.

### Is Voltage Calculator free?

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

### Do Coil Toolkit Pro or Voltage Calculator have ads?

Neither Coil Toolkit Pro nor Voltage Calculator shows ads.

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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.*