# Quiet Circuits vs Northdown

The clearest difference is in-app purchases: Quiet Circuits at none against Northdown's 5. Quiet Circuits also leads on ads (none vs shown). Northdown's advantage is iOS requirement (14.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Northdown sells 5 one-off in-app purchases. Quiet Circuits asks for nothing beyond the download.

Quiet Circuits ships an update every 2 days, Northdown every 3 days. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Quiet Circuits | Northdown |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 3 days |
| Size | 51 MB | 56 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Laurent Chouinard](https://appshunter.io/developer/1896321782) | [Revelar Solutions Private Limited](https://appshunter.io/developer/6796285613) |

## 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


### Northdown

[App page](https://appshunter.io/ios/app/northdown-3d-gravity-puzzle/id6809133373)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 coins | $0.99 | one-time |
| 2,000 coins | $2.99 | one-time |
| Remove ads | $5.99 | one-time |
| 6,000 coins | $6.99 | one-time |
| Everything pack | $8.99 | one-time |


## Frequently asked questions

### Is Quiet Circuits free?

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

### Is Northdown free?

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

### Do Quiet Circuits or Northdown have ads?

Northdown shows ads; Quiet Circuits does not.

### Which is updated more often, Quiet Circuits or Northdown?

Quiet Circuits ships an update every 2 days, and Northdown every 3 days. Most recently, Quiet Circuits was updated on November 10, 2026 and Northdown 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.*