# V3 SOUND CONTROL vs CalcKX

The clearest difference is update cadence: CalcKX at every 4 days against V3 SOUND CONTROL's every 2 months. CalcKX also leads on device support (3 vs 1). V3 SOUND CONTROL's advantage is iOS requirement (12.2 vs 14.1). On price, ads and in-app purchases there is nothing between them.

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

V3 SOUND CONTROL ships an update every 2 months, CalcKX every 4 days. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | V3 SOUND CONTROL | CalcKX |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 50 MB | 1 MB |
| Requires iOS | **12.2** | 14.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [V3SOUND GmbH](https://appshunter.io/developer/1521452577) | [Martin Kowollik](https://appshunter.io/developer/1496665932) |

## What reviewers say

### V3 SOUND CONTROL

[App page](https://appshunter.io/ios/app/v3-sound-control/id1521452575)

Control V3 Sound expanders, including Pro Line and XXL models, directly from your tablet. Adjust parameters, select sounds, and save custom registrations. Requires the V3-SOUND-CONTROL Bluetooth hardware receiver.

**Highlights:** Control V3 Sound expanders, Select and adjust sound parameters, Save custom registrations, Overlay and split up to 6 sounds, Bluetooth connectivity

**Features:** Vision Pro support

**In-app purchases:** none


### CalcKX

[App page](https://appshunter.io/ios/app/calckx/id1583409123)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is V3 SOUND CONTROL free?

V3 SOUND CONTROL is free to download, with no in-app purchases.

### Is CalcKX free?

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

### Do V3 SOUND CONTROL or CalcKX have ads?

Neither V3 SOUND CONTROL nor CalcKX shows ads.

### Which is updated more often, V3 SOUND CONTROL or CalcKX?

V3 SOUND CONTROL ships an update every 2 months, and CalcKX every 4 days. Most recently, V3 SOUND CONTROL was updated on October 12, 2026 and CalcKX on October 1, 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.*