# Light4Events vs Qui double ?

The clearest difference is ads: Light4Events at none against Qui double ?'s shown. Light4Events also leads on iOS requirement (12.4 vs 16.4). Qui double ?'s advantage is update cadence (every 2 days vs every 2 months). 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.

Light4Events ships an update every 2 months, Qui double ? every 2 days. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Light4Events | Qui double ? |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 9 MB | 40 MB |
| Requires iOS | **12.4** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Light4Events](https://appshunter.io/developer/1827238206) | [YOHAN NATAF](https://appshunter.io/developer/6802404306) |

## What reviewers say

### Light4Events

[App page](https://appshunter.io/ios/app/light4events/id1042244718)

Transform your smartphone into a dynamic visual element at compatible events. Participate in synchronized light shows and interactive content, enhancing the collective experience for concerts, shows, and commercial events. The more users, the grander the effect.

**Highlights:** Synchronized visual effects, Smartphone as animated pixel, Interactive content, Public light canvas, Camera flash activation

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

**In-app purchases:** none


### Qui double ?

[App page](https://appshunter.io/ios/app/qui-double/id6809901191)

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

**In-app purchases:** none


## Frequently asked questions

### Is Light4Events free?

Light4Events is free to download, with no in-app purchases.

### Is Qui double ? free?

Qui double ? is free to download, with no in-app purchases.

### Do Light4Events or Qui double ? have ads?

Qui double ? shows ads; Light4Events does not.

### Which is updated more often, Light4Events or Qui double ??

Light4Events ships an update every 2 months, and Qui double ? every 2 days. Most recently, Light4Events was updated on September 30, 2026 and Qui double ? on October 3, 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.*