# Haudi vs VoltKit

The clearest difference is in-app purchases: Haudi at none against VoltKit's 1. Haudi also leads on device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. VoltKit sells 1 one-off in-app purchase. Haudi asks for nothing beyond the download.

## The numbers

| Metric | Haudi | VoltKit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/voltkit-voltage-drop-and-wire/id6794700044/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Monetization | — | Free |
| Size | 16 MB | 49 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Spin TEK AS](https://appshunter.io/developer/1123942472) | [Kenan Islamoglu](https://appshunter.io/developer/1209785529) |

## What reviewers say

### Haudi

[App page](https://appshunter.io/ios/app/haudi/id1123942473)

**Features:** macOS Compatibility

**In-app purchases:** none


### VoltKit

[App page](https://appshunter.io/ios/app/voltkit-voltage-drop-and-wire/id6794700044)

This app is a comprehensive electrical calculator for field use, offering instant calculations for voltage drop, wire sizing, and Ohm's Law. It provides clear results with formulas and is designed for offline, glove-friendly operation.

**Highlights:** Voltage drop calculation (single/three-phase, DC), Wire size calculation (voltage drop & ampacity), Ohm's Law and power calculations, Offline functionality, Displays formulas used for results, Glove-friendly interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VoltKit Pro | $4.99 | one-time |


## Frequently asked questions

### Is Haudi free?

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

### Is VoltKit free?

VoltKit is free to download, with in-app purchases available.

### Do Haudi or VoltKit have ads?

Neither Haudi nor VoltKit 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.*