# Turn Light On vs Quantum Quiz App

The clearest difference is update cadence: Turn Light On at every 5 weeks against Quantum Quiz App's every 12 months. Turn Light On also leads on iOS requirement (12.1 vs 14.2). 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.

Turn Light On ships an update every 5 weeks, Quantum Quiz App every 12 months. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Turn Light On | Quantum Quiz App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/quantum-quiz-app/id1529418013/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 12 months |
| Monetization | — | Free |
| Size | 15 MB | 97 MB |
| Requires iOS | **12.1** | 14.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Giuseppe Calcagno](https://appshunter.io/developer/510762783) | [Toptica Photonics AG](https://appshunter.io/developer/919586983) |

## What reviewers say

### Turn Light On

[App page](https://appshunter.io/ios/app/turn-light-on/id519685020)

**In-app purchases:** none


### Quantum Quiz App

[App page](https://appshunter.io/ios/app/quantum-quiz-app/id1529418013)

Test and improve your knowledge of quantum technologies with this engaging quiz app. Play solo or compete with others in multiplayer modes, with over 800 questions across three difficulty levels. Submit your own questions to contribute to the growing library.

**Highlights:** Improve quantum technology knowledge, Solo and multiplayer modes, Over 800 questions, Three difficulty levels, Submit your own questions, Monthly high score reset

**In-app purchases:** none


## Frequently asked questions

### Is Turn Light On free?

Turn Light On is free to download, with no in-app purchases.

### Is Quantum Quiz App free?

Quantum Quiz App is free to download, with no in-app purchases.

### Do Turn Light On or Quantum Quiz App have ads?

Neither Turn Light On nor Quantum Quiz App shows ads.

### Which is updated more often, Turn Light On or Quantum Quiz App?

Turn Light On ships an update every 5 weeks, and Quantum Quiz App every 12 months. Most recently, Turn Light On was updated on October 26, 2026 and Quantum Quiz App on October 16, 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.*