# TechKIT vs Voltage Calculator

The clearest difference is ads: Voltage Calculator at none against TechKIT's shown. TechKIT's advantage is update cadence (every 6 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

TechKIT ships an update every 6 days, Voltage Calculator every 2 weeks. Both last shipped on September 15, 2026.

## The numbers

| Metric | TechKIT | Voltage Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Size | 72 MB | 72 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Sergio Kirienko](https://appshunter.io/developer/1611605628) | [ESDEV Teknoloji](https://appshunter.io/developer/1693053468) |

## What reviewers say

### TechKIT

[App page](https://appshunter.io/ios/app/techkit-technician-tools/id6756894714)

**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 TechKIT free?

TechKIT 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 TechKIT or Voltage Calculator have ads?

TechKIT shows ads; Voltage Calculator does not.

### Which is updated more often, TechKIT or Voltage Calculator?

TechKIT ships an update every 6 days, and Voltage Calculator every 2 weeks. Most recently, TechKIT was updated on September 15, 2026 and Voltage Calculator on September 15, 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.*