# Quiet Circuits vs Stone Zen

The clearest difference is ads: Quiet Circuits at none against Stone Zen's shown. Quiet Circuits also leads on update cadence (every 2 days vs every 3 weeks). Stone Zen's advantage is iOS requirement (15.0 vs 17.0). On price, 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.

Quiet Circuits ships an update every 2 days, Stone Zen every 3 weeks. The most recent releases landed on October 12, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Quiet Circuits | Stone Zen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 51 MB | 138 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Laurent Chouinard](https://appshunter.io/developer/1896321782) | [Artem Kalmykov](https://appshunter.io/developer/1477211781) |

## What reviewers say

### Quiet Circuits

[App page](https://appshunter.io/ios/app/quiet-circuits/id6777819374)

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

**In-app purchases:** none


### Stone Zen

[App page](https://appshunter.io/ios/app/stone-zen/id6791721923)

**In-app purchases:** none


## Frequently asked questions

### Is Quiet Circuits free?

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

### Is Stone Zen free?

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

### Do Quiet Circuits or Stone Zen have ads?

Stone Zen shows ads; Quiet Circuits does not.

### Which is updated more often, Quiet Circuits or Stone Zen?

Quiet Circuits ships an update every 2 days, and Stone Zen every 3 weeks. Most recently, Quiet Circuits was updated on October 12, 2026 and Stone Zen on October 19, 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.*