# Klangkraft Sidekick vs eighty32 Toolbox

The clearest difference is in-app purchases: Klangkraft Sidekick at none against eighty32 Toolbox's 1. eighty32 Toolbox's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. eighty32 Toolbox sells 1 one-off in-app purchase. Klangkraft Sidekick asks for nothing beyond the download.

Klangkraft Sidekick ships an update every 2 months, eighty32 Toolbox every 3 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | Klangkraft Sidekick | eighty32 Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eighty32-toolbox-rf-and-audio/id6777845752/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | — | Freemium |
| Size | 4 MB | 4 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Torge Joris](https://appshunter.io/developer/6771759487) | [Chris DeBrizzio](https://appshunter.io/developer/6776321234) |

## What reviewers say

### Klangkraft Sidekick

[App page](https://appshunter.io/ios/app/klangkraft-sidekick/id6771760966)

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

**In-app purchases:** none


### eighty32 Toolbox

[App page](https://appshunter.io/ios/app/eighty32-toolbox-rf-and-audio/id6777845752)

This comprehensive suite offers essential tools for AV, RF, and live-production technicians. It includes calculators for delay, dB math, and Ohm's law, alongside RF analysis, audio metering, and a reference library of equipment specifications. An optional one-time unlock provides advanced features.

**Highlights:** Delay time and speaker alignment calculators, dB math and scale conversion, Ohm's law and speaker load calculations, RF intermodulation and spacing analysis, Frequency coordination engine, Audio meters (RTA, FFT, Loudness, SPL), Equipment reference library (speakers, mics, connectors)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Toolbox Pro | $9.99 | one-time |


## Frequently asked questions

### Is Klangkraft Sidekick free?

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

### Is eighty32 Toolbox free?

eighty32 Toolbox is free to download, with in-app purchases available.

### Do Klangkraft Sidekick or eighty32 Toolbox have ads?

Neither Klangkraft Sidekick nor eighty32 Toolbox shows ads.

### Which is updated more often, Klangkraft Sidekick or eighty32 Toolbox?

Klangkraft Sidekick ships an update every 2 months, and eighty32 Toolbox every 3 months. Most recently, Klangkraft Sidekick was updated on October 31, 2026 and eighty32 Toolbox on October 31, 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.*