# K3 Tones vs zensoundlab

The clearest difference is update cadence: zensoundlab at every 2 months against K3 Tones's every 8 months. 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.

K3 Tones ships an update every 8 months, zensoundlab every 2 months. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | K3 Tones | zensoundlab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zensoundlab/id6752822761/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 11 MB | 39 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kadosh3, llc](https://appshunter.io/developer/1447650365) | [PracticallyZen, LLC](https://appshunter.io/developer/1833874358) |

## What reviewers say

### K3 Tones

[App page](https://appshunter.io/ios/app/k3-tones/id1668442616)

**Features:** Vision Pro support

**In-app purchases:** none


### zensoundlab

[App page](https://appshunter.io/ios/app/zensoundlab/id6752822761)

Create personalized audio therapy sessions with real-time generation of binaural beats, noise colors, and pure tones. Customize frequency, spectrum, and layer sounds for focus, sleep, or relaxation. Features a smart sleep timer and optional responsive visuals.

**Highlights:** Real-time binaural beat generation (0.5-40 Hz), Customizable noise colors (white, pink, brown, blue, violet), Pure tones and Shepard tones, Layered sound sessions, Pre-set therapy sessions, Smart sleep timer with Lock Screen integration, Responsive visuals

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is K3 Tones free?

K3 Tones is free to download, with no in-app purchases.

### Is zensoundlab free?

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

### Do K3 Tones or zensoundlab have ads?

Neither K3 Tones nor zensoundlab shows ads.

### Which is updated more often, K3 Tones or zensoundlab?

K3 Tones ships an update every 8 months, and zensoundlab every 2 months. Most recently, K3 Tones was updated on October 20, 2026 and zensoundlab on October 10, 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.*